Texas Instruments Inc
Texas InstActive Patents
0
Total Holdings
551
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US20030025213A1 | Device for attaching a semiconductor chip to a chip carrier | Expired / Lapsed | 2002-09-27 | — | 7 | Details |
| EP1049300A2 | PCM modem with pre-equalisation | Expired / Lapsed | 2000-04-28 | — | 20 | Details |
| EP1017005A2 | A system and method for communicating with multiple transpo… | Expired / Lapsed | 1999-11-30 | — | 11 | Details |
| EP0981204A2 | Self-calibrating analog-to-digital converter | Expired / Lapsed | 1999-08-19 | — | 10 | Details |
| EP0964540A2 | System for dynamic adaptation of data channel coding in wir… | Expired / Lapsed | 1999-05-20 | — | 14 | Details |
| EP0855648A2 | Data processing with parallel or sequential execution of pr… | Expired / Lapsed | 1998-01-23 | — | 3 | Details |
| EP0854645A2 | Electronic television program guide system and method | Expired / Lapsed | 1998-01-05 | — | 20 | Details |
| EP0854645A3 | Electronic television program guide system and method | Expired / Lapsed | 1998-01-05 | — | 0 | Details |
| EP0852443A2 | An apparatus for producing interactive television programs | Expired / Lapsed | 1998-01-05 | — | 20 | Details |
| EP0852361A2 | Improvements in or relating to televisions | Expired / Lapsed | 1998-01-05 | — | 20 | Details |
| EP0848563A2 | Improvements in or relating to telecommunication systems | Expired / Lapsed | 1997-12-10 | — | 19 | Details |
| EP0840276A2 | Window processing in an on screen display system | Expired / Lapsed | 1997-11-03 | — | 2 | Details |
| EP0831624A2 | A modem | Expired / Lapsed | 1997-09-04 | — | 7 | Details |
| EP0828363A2 | Multicode modem with a plurality of analogue front ends | Expired / Lapsed | 1997-09-04 | — | 10 | Details |
| EP0820168A2 | Multimode modem, and protocols therefor | Expired / Lapsed | 1997-07-17 | — | 4 | Details |
| EP0806852A2 | A multimode digital modem | Expired / Lapsed | 1997-05-06 | — | 30 | Details |
| EP0805405A2 | Motion event detection for video indexing | Expired / Lapsed | 1997-02-04 | — | 12 | Details |
| EP0796024A2 | Low power, short range point-to-multipoint communications s… | Expired / Lapsed | 1995-11-28 | — | 21 | Details |
| EP0698874A1 | Method for reducing temporal artifacts in digital video sys… | Expired / Lapsed | 1995-07-18 | — | 5 | Details |
| EP0689161A2 | Identification system | Expired / Lapsed | 1995-06-23 | — | 18 | Details |
| EP0662773A1 | Method and apparatus for sequential color imaging | Expired / Lapsed | 1995-01-05 | — | 15 | Details |
| EP0651571A2 | A graphics data unit for a television receiver | Expired / Lapsed | 1994-10-31 | — | 20 | Details |
| EP0568067A1 | RFID system with controlled charge | Expired / Lapsed | 1993-04-29 | — | 23 | Details |
| EP0547603A2 | White light sequential color projection system with enhance… | Expired / Lapsed | 1992-12-17 | — | 10 | Details |
| EP0547493A1 | Virtual display device and method of use | Expired / Lapsed | 1992-12-09 | — | 17 | Details |
| EP0530762A2 | DMD display system controller | Expired / Lapsed | 1992-09-02 | — | 8 | Details |
| EP0509817A1 | System and method utilizing a real time expert system for t… | Expired / Lapsed | 1992-04-16 | — | 16 | Details |
| EP0501828A1 | Method and system for a multi channel and search global pos… | Expired / Lapsed | 1992-02-28 | — | 28 | Details |
| EP0501829A1 | System and method for a digital navigation satellite receiv… | Expired / Lapsed | 1992-02-28 | — | 27 | Details |
| EP0472386A2 | Digital signal processing control method and apparatus | Expired / Lapsed | 1991-08-19 | — | 23 | Details |
| EP0451695A2 | Method and apparatus for securing access to telecommunicati… | Expired / Lapsed | 1991-04-04 | — | 17 | Details |
| EP0433985A2 | Spatial light modulator printer | Expired / Lapsed | 1990-12-18 | — | 22 | Details |
| EP0420461A2 | Portable and dynamic distributed applications architecture | Expired / Lapsed | 1990-09-14 | — | 24 | Details |
| EP0391529A2 | Apparatus for digitized video system | Expired / Lapsed | 1990-02-27 | — | 43 | Details |
| EP0354369A2 | Infrared detector | Expired / Lapsed | 1989-07-12 | — | 26 | Details |
| EP0230141A2 | Porthole window system for computer displays | Expired / Lapsed | 1986-12-23 | — | 17 | Details |
| EP0213938A2 | Failsafe brake for a multi-wheel vehicle with motor control… | Expired / Lapsed | 1986-08-29 | — | 14 | Details |
| EP0221643A2 | Vision navigation system for free-roaming mobile robots | Expired / Lapsed | 1986-08-29 | — | 39 | Details |
| EP0213939A2 | Mobile vehicle controller utilization of delayed absolute p… | Expired / Lapsed | 1986-08-29 | — | 30 | Details |
| EP0206512A2 | Method and apparatus for routing packets in a multinode com… | Expired / Lapsed | 1986-05-19 | — | 30 | Details |
| EP0066076A1 | Integrated circuit FSK modem | Expired / Lapsed | 1982-04-20 | — | 12 | Details |
| EP0059349A2 | Display system with multiple scrolling regions | Expired / Lapsed | 1982-02-11 | — | 17 | Details |
| GB2020077A | Learning aid or game having miniature electronic speech syn… | Expired / Lapsed | 1979-04-23 | — | 0 | Details |
| GB2000381A | Interchangeable module for integrated circuits | Expired / Lapsed | 1978-06-05 | — | 0 | Details |
| DE2818570A1 | DIGITAL SEND-RECEIVE ARRANGEMENT | Expired / Lapsed | 1978-04-27 | — | 0 | Details |
| DE2459464A1 | KEYBOARD WITH MOLDED PUSH KEYS | Expired / Lapsed | 1974-12-16 | — | 0 | Details |
| GB1461202A | Annealing of nickel/titanium alloys | Expired / Lapsed | 1974-12-10 | — | 0 | Details |
| DE2423370A1 | ELECTRONIC CALCULATING MACHINE | Expired / Lapsed | 1974-05-14 | — | 0 | Details |
| DE2013906A1 | Navigation method for a vehicle and system for carrying out… | Expired / Lapsed | 1970-03-23 | — | 0 | Details |
| GB809877A | Materials for and methods of manufacturing semiconductor de… | Expired / Lapsed | 1956-11-22 | — | 0 | Details |
| US6806830B2 | Electronic device precision location via local broadcast si… | Expired / Lapsed | 2001-12-31 | 2004-10-19 | 34 | Details |
| US6747827B1 | Error correction codes applied variably by disk zone, track… | Expired / Lapsed | 2000-03-27 | 2004-06-08 | 17 | Details |
| US6710788B1 | Graphical user interface | Expired / Lapsed | 1996-12-03 | 2004-03-23 | 37 | Details |
| US6647070B1 | Method and apparatus for combating impulse noise in digital… | Expired / Lapsed | 1999-09-09 | 2003-11-11 | 11 | Details |
| US6614297B2 | Modulation scheme for filterless switching amplifiers with … | Expired / Lapsed | 2001-07-06 | 2003-09-02 | 22 | Details |
| US6559523B2 | Device for attaching a semiconductor chip to a chip carrier | Expired / Lapsed | 2001-04-19 | 2003-05-06 | 18 | Details |
| US6526144B2 | Data protection system | Expired / Lapsed | 1998-06-02 | 2003-02-25 | 25 | Details |
| US6420991B1 | Dynamic element matching for converting element mismatch in… | Expired / Lapsed | 1999-09-08 | 2002-07-16 | 16 | Details |
| US6377550B1 | Nested measurement period switch algorithm for flow control… | Expired / Lapsed | 1998-10-27 | 2002-04-23 | 18 | Details |
| US6374325B1 | Content addressable memory (CAM) | Expired / Lapsed | 1999-02-17 | 2002-04-16 | 8 | Details |
| US6340992B1 | Automatic detection of letterbox and subtitles in video | Expired / Lapsed | 1998-12-29 | 2002-01-22 | 23 | Details |
| US6330482B1 | Communications, information, maintenance diagnostic and tra… | Expired / Lapsed | 1994-08-30 | 2001-12-11 | 7 | Details |
| US6275491B1 | Programmable architecture fast packet switch | Expired / Lapsed | 1998-05-28 | 2001-08-14 | 24 | Details |
| US6269999B1 | Semiconductor chip mounting method utilizing ultrasonic vib… | Expired / Lapsed | 2000-08-03 | 2001-08-07 | 17 | Details |
| US6232917B1 | Navigational system | Expired / Lapsed | 1998-11-19 | 2001-05-15 | 36 | Details |
| US6219378B1 | Digital subscriber line modem initialization | Expired / Lapsed | 1997-12-19 | 2001-04-17 | 21 | Details |
| US6219627B1 | Architecture of a chip having multiple processors and multi… | Expired / Lapsed | 1994-07-12 | 2001-04-17 | 17 | Details |
| US6215816B1 | Physical layer interface device | Expired / Lapsed | 1998-03-04 | 2001-04-10 | 40 | Details |
| US6211728B1 | Modulation scheme for filterless switching amplifiers | Expired / Lapsed | 1999-11-16 | 2001-04-03 | 22 | Details |
| US6205151B1 | ATM cell scheduler which uses a heap memory and associates … | Expired / Lapsed | 1997-12-18 | 2001-03-20 | 21 | Details |
| US6198875B1 | Tiris based bios for protection of “copyrighted” program ma… | Expired / Lapsed | 1997-12-19 | 2001-03-06 | 11 | Details |
| US6170049B1 | PC circuits, systems and methods | Expired / Lapsed | 1999-08-11 | 2001-01-02 | 55 | Details |
| US6104749A | Message frame and flow control in a digital subscriber line… | Expired / Lapsed | 1997-12-30 | 2000-08-15 | 44 | Details |
| US6069814A | Multiple input buffers for address bits | Expired / Lapsed | 1995-01-10 | 2000-05-30 | 7 | Details |
| EP0501828B1 | Method and system for a multi channel and search global pos… | Expired / Lapsed | 1992-02-28 | 2000-01-12 | 12 | Details |
| EP0501829B1 | System and method for a digital navigation satellite receiv… | Expired / Lapsed | 1992-02-28 | 1999-06-16 | 27 | Details |
| US4418293B1 | High performance dynamic sense amplifier with multiple colu… | Expired / Lapsed | 1980-10-22 | 1998-06-09 | 0 | Details |
| US5755979A | Application of semiconductor IC fabrication techniques to t… | Expired / Lapsed | 1996-09-24 | 1998-05-26 | 12 | Details |
| US4618947B1 | Dynamic memory with improved address counter for serial mod… | Expired / Lapsed | 1984-07-26 | 1998-01-06 | 0 | Details |
| US5597767A | Separation of wafer into die with wafer-level processing | Expired / Lapsed | 1995-01-06 | 1997-01-28 | 23 | Details |
| US5569187A | Method and apparatus for wireless chemical supplying | Expired / Lapsed | 1994-08-16 | 1996-10-29 | 23 | Details |
| US5525992A | Method and system for conserving power in a recognition sys… | Expired / Lapsed | 1994-11-14 | 1996-06-11 | 28 | Details |
| US5519655A | Memory architecture using new power saving row decode imple… | Expired / Lapsed | 1994-09-29 | 1996-05-21 | 27 | Details |
| US5465401A | Communication system and methods for enhanced information t… | Expired / Lapsed | 1992-12-15 | 1995-11-07 | 13 | Details |
| US5455575A | Multi-interrogator, datacom and transponder arrangement | Expired / Lapsed | 1994-09-23 | 1995-10-03 | 15 | Details |
| US5450086A | Self-tuning receiver/decoder for frequency shift keying RF … | Expired / Lapsed | 1993-12-03 | 1995-09-12 | 17 | Details |
| US5353254A | Semiconductor memory device having burn-in test circuit | Expired / Lapsed | 1992-05-21 | 1994-10-04 | 20 | Details |
| US5343433A | CMOS sense amplifier | Expired / Lapsed | 1990-07-26 | 1994-08-30 | 15 | Details |
| US5313432A | Segmented, multiple-decoder memory array and method for pro… | Expired / Lapsed | 1991-11-12 | 1994-05-17 | 33 | Details |
| US5294792A | Writing tip position sensing and processing apparatus | Expired / Lapsed | 1991-12-31 | 1994-03-15 | 22 | Details |
| US5272638A | Systems and methods for planning the scheduling travel rout… | Expired / Lapsed | 1991-05-31 | 1993-12-21 | 26 | Details |
| US5247678A | Load time linker for software used with a multiprocessor sy… | Expired / Lapsed | 1989-10-12 | 1993-09-21 | 14 | Details |
| EP0174099B1 | Fiber optic terminal interface | Expired / Lapsed | 1985-08-05 | 1993-07-14 | 10 | Details |
| US5218704A | Real-time power conservation for portable computers | Expired / Lapsed | 1989-10-30 | 1993-06-08 | 17 | Details |
| US5199088A | Fiber optic switch with spatial light modulator device | Expired / Lapsed | 1991-12-31 | 1993-03-30 | 24 | Details |
| US5185610A | GPS system and method for deriving pointing or attitude fro… | Expired / Lapsed | 1990-08-20 | 1993-02-09 | 42 | Details |
| USD328294S | Telecommunication device with hinged cover | Expired / Lapsed | 1991-04-26 | 1992-07-28 | 1 | Details |
| US5123850A | Non-destructive burn-in test socket for integrated circuit … | Expired / Lapsed | 1991-06-07 | 1992-06-23 | 28 | Details |
| US5119451A | Optical waveguides as interconnects from integrated circuit… | Expired / Lapsed | 1990-12-31 | 1992-06-02 | 27 | Details |
| US5066872A | Speed-up technique for a constant di/dt buffer | Expired / Lapsed | 1990-06-11 | 1991-11-19 | 24 | Details |
| US5061049A | Spatial light modulator and method | Expired / Lapsed | 1990-09-13 | 1991-10-29 | 34 | Details |
| US5023837A | Bitline segmentation in logic arrays | Expired / Lapsed | 1989-09-05 | 1991-06-11 | 27 | Details |
| US4989055A | Dynamic random access memory cell | Expired / Lapsed | 1989-06-15 | 1991-01-29 | 12 | Details |
| US4940925A | Closed-loop navigation system for mobile robots | Expired / Lapsed | 1988-10-31 | 1990-07-10 | 12 | Details |
| US4933878A | Graphics data processing apparatus having non-linear satura… | Expired / Lapsed | 1989-08-25 | 1990-06-12 | 26 | Details |
| US4926103A | System for dynamically determining position of multiple aut… | Expired / Lapsed | 1988-10-31 | 1990-05-15 | 7 | Details |
| US4903120A | Chip carrier with interconnects on lid | Expired / Lapsed | 1985-11-22 | 1990-02-20 | 24 | Details |
| US4899315A | Low-power, noise-resistant read-only memory | Expired / Lapsed | 1988-11-14 | 1990-02-06 | 3 | Details |
| US4895735A | Radiation induced pattern deposition | Expired / Lapsed | 1988-03-01 | 1990-01-23 | 48 | Details |
| US4891303A | Trilayer microlithographic process using a silicon-based re… | Expired / Lapsed | 1988-05-26 | 1990-01-02 | 14 | Details |
| US4882008A | Dry development of photoresist | Expired / Lapsed | 1988-07-08 | 1989-11-21 | 33 | Details |
| US4882694A | Apparatus for visually locating and communicating with mobi… | Expired / Lapsed | 1988-05-12 | 1989-11-21 | 16 | Details |
| US4862019A | Single-level poly programmable bit circuit | Expired / Lapsed | 1988-04-20 | 1989-08-29 | 14 | Details |
| US4207618B1 | US4207618B1 - - Google Patents | Expired / Lapsed | 1978-06-26 | 1989-04-18 | 0 | Details |
| US4814971A | Virtual memory recovery system using persistent roots for s… | Expired / Lapsed | 1985-09-11 | 1989-03-21 | 5 | Details |
| US4783427A | Process for fabricating quantum-well devices | Expired / Lapsed | 1986-02-18 | 1988-11-08 | 14 | Details |
| US4712242A | Speaker-independent word recognizer | Expired / Lapsed | 1983-04-13 | 1987-12-08 | 20 | Details |
| US4691886A | Adjustable display stand | Expired / Lapsed | 1985-04-18 | 1987-09-08 | 14 | Details |
| US4683486A | dRAM cell and array | Expired / Lapsed | 1984-09-24 | 1987-07-28 | 15 | Details |
| US4677586A | Microcomputer device having test mode substituting external… | Expired / Lapsed | 1986-08-25 | 1987-06-30 | 15 | Details |
| US4673962A | Vertical DRAM cell and method | Expired / Lapsed | 1985-03-21 | 1987-06-16 | 15 | Details |
| US4660130A | Method for managing virtual memory to separate active and s… | Expired / Lapsed | 1984-07-24 | 1987-04-21 | 13 | Details |
| US4656613A | Semiconductor dynamic memory device with decoded active loa… | Expired / Lapsed | 1984-08-29 | 1987-04-07 | 11 | Details |
| US4633392A | Self-configuring digital processor system with logical arbi… | Expired / Lapsed | 1985-04-22 | 1986-12-30 | 12 | Details |
| US4628487A | Dual slope, feedback controlled, EEPROM programming | Expired / Lapsed | 1984-08-14 | 1986-12-09 | 21 | Details |
| US4618947A | Dynamic memory with improved address counter for serial mod… | Expired / Lapsed | 1984-07-26 | 1986-10-21 | 21 | Details |
| US4601034A | Method and apparatus for testing very large scale integrate… | Expired / Lapsed | 1984-03-30 | 1986-07-15 | 15 | Details |
| US4562535A | Self-configuring digital processor system with global system | Expired / Lapsed | 1982-04-05 | 1985-12-31 | 8 | Details |
| US4545038A | Precharged discharge sensing for EPROM | Expired / Lapsed | 1982-04-05 | 1985-10-01 | 5 | Details |
| US4539703A | Video data acquisition system and hand-held application mod… | Expired / Lapsed | 1982-03-05 | 1985-09-03 | 10 | Details |
| US4521701A | High-speed low-power delayed clock generator | Expired / Lapsed | 1982-09-16 | 1985-06-04 | 12 | Details |
| US4514805A | Interrupt operation in systems emulator mode for microcompu… | Expired / Lapsed | 1982-02-22 | 1985-04-30 | 5 | Details |
| US4512283A | Plasma reactor sidewall shield | Expired / Lapsed | 1983-11-04 | 1985-04-23 | 25 | Details |
| US4496222A | Apparatus and method for photolithography with phase conjug… | Expired / Lapsed | 1984-05-01 | 1985-01-29 | 8 | Details |
| US4485383A | Global position system (GPS) multiplexed receiver | Expired / Lapsed | 1980-12-01 | 1984-11-27 | 8 | Details |
| US4484188A | Graphics video resolution improvement apparatus | Expired / Lapsed | 1982-04-23 | 1984-11-20 | 32 | Details |
| US4479124A | Synthesized voice radio paging system | Expired / Lapsed | 1981-07-10 | 1984-10-23 | 20 | Details |
| US4456961A | Apparatus for teaching and transforming noncoincident coord… | Expired / Lapsed | 1982-03-05 | 1984-06-26 | 6 | Details |
| US4450843A | Miniature biofeedback instrument | Expired / Lapsed | 1980-11-24 | 1984-05-29 | 7 | Details |
| US4441791A | Deformable mirror light modulator | Expired / Lapsed | 1982-06-07 | 1984-04-10 | 52 | Details |
| US4435711A | Radio telephone with position transmission capability | Expired / Lapsed | 1980-09-15 | 1984-03-06 | 5 | Details |
| US4435752A | Allocation of rotating memory device storage locations | Expired / Lapsed | 1980-04-09 | 1984-03-06 | 10 | Details |
| US4433896A | Coaxial optical fiber connector | Expired / Lapsed | 1981-10-05 | 1984-02-28 | 10 | Details |
| US4428057A | Electronic chart system | Expired / Lapsed | 1981-06-09 | 1984-01-24 | 9 | Details |
| US4425015A | Attachable, circuit-terminating, circuit board edge member | Expired / Lapsed | 1982-07-23 | 1984-01-10 | 9 | Details |
| US4423923A | Method and fixture for coupling optical fibers | Expired / Lapsed | 1981-10-05 | 1984-01-03 | 11 | Details |
| US4422092A | High coupling ratio electrically programmable ROM | Expired / Lapsed | 1982-02-01 | 1983-12-20 | 4 | Details |
| US4409665A | Turn-off-processor between keystrokes | Expired / Lapsed | 1979-12-26 | 1983-10-11 | 3 | Details |
| US4403284A | Microprocessor which detects leading 1 bit of instruction t… | Expired / Lapsed | 1980-11-24 | 1983-09-06 | 4 | Details |
| US4399331A | Telephone microprocessor system | Expired / Lapsed | 1981-05-13 | 1983-08-16 | 11 | Details |
| US4393475A | Non-volatile semiconductor memory and the testing method fo… | Expired / Lapsed | 1981-01-27 | 1983-07-12 | 4 | Details |
| US4387447A | Column and ground select sequence in electrically programma… | Expired / Lapsed | 1980-02-04 | 1983-06-07 | 15 | Details |
| US4370575A | High performance dynamic sense amplifier with active loads | Expired / Lapsed | 1980-10-14 | 1983-01-25 | 11 | Details |
| US4360716A | Area actuated switch array | Expired / Lapsed | 1980-10-01 | 1982-11-23 | 12 | Details |
| US4330852A | Semiconductor read/write memory array having serial access | Expired / Lapsed | 1979-11-23 | 1982-05-18 | 9 | Details |
| US4327964A | Snap-action fiber optic connector | Expired / Lapsed | 1979-12-20 | 1982-05-04 | 5 | Details |
| US4312358A | Instrument for measuring and computing heart beat, body tem… | Expired / Lapsed | 1979-07-23 | 1982-01-26 | 27 | Details |
| US4302766A | Self-limiting erasable memory cell with triple level polysi… | Expired / Lapsed | 1979-01-05 | 1981-11-24 | 19 | Details |
| US4301518A | Differential sensing of single ended memory array | Expired / Lapsed | 1979-11-01 | 1981-11-17 | 21 | Details |
| USD261773S | Design for a handheld calculator | Expired / Lapsed | 1979-03-15 | 1981-11-10 | 1 | Details |
| US4295264A | Method of making integrated circuit MOS capacitor using imp… | Expired / Lapsed | 1976-11-15 | 1981-10-20 | 5 | Details |
| US4295181A | Module for an integrated circuit system | Expired / Lapsed | 1979-01-15 | 1981-10-13 | 11 | Details |
| US4282446A | High density floating gate EPROM programmable by charge sto… | Expired / Lapsed | 1979-10-01 | 1981-08-04 | 16 | Details |
| US4281397A | Virtual ground MOS EPROM or ROM matrix | Expired / Lapsed | 1979-10-29 | 1981-07-28 | 10 | Details |
| US4255679A | Depletion load dynamic sense amplifier for MOS random acces… | Expired / Lapsed | 1978-10-30 | 1981-03-10 | 12 | Details |
| US4243984A | Video display processor | Expired / Lapsed | 1979-03-08 | 1981-01-06 | 10 | Details |
| US4234761A | Method of communicating digital speech data and a memory fo… | Expired / Lapsed | 1978-06-19 | 1980-11-18 | 11 | Details |
| US4225945A | Random access MOS memory cell using double level polysilicon | Expired / Lapsed | 1977-06-06 | 1980-09-30 | 11 | Details |
| US4219836A | Contact programmable double level polysilicon MOS read only… | Expired / Lapsed | 1978-05-18 | 1980-08-26 | 12 | Details |
| US4218752A | Charge-transfer programmable filter | Expired / Lapsed | 1978-04-11 | 1980-08-19 | 44 | Details |
| US4216522A | Interchangeable module for integrated circuits | Expired / Lapsed | 1977-06-06 | 1980-08-05 | 9 | Details |
| USD256028S | Case for an electronic learning aid, game or similar appara… | Expired / Lapsed | 1978-05-01 | 1980-07-22 | 1 | Details |
| US4208727A | Semiconductor read only memory using MOS diodes | Expired / Lapsed | 1978-06-15 | 1980-06-17 | 5 | Details |
| US4200666A | Single component monomer for silicon nitride deposition | Expired / Lapsed | 1978-08-02 | 1980-04-29 | 8 | Details |
| USD254779S | Digital thermometer | Expired / Lapsed | 1978-02-23 | 1980-04-22 | 1 | Details |
| US4189779A | Parameter interpolator for speech synthesis circuit | Expired / Lapsed | 1978-04-28 | 1980-02-19 | 11 | Details |
| USD253937S | Loran C receiver | Expired / Lapsed | 1977-10-03 | 1980-01-15 | 1 | Details |
| US4170498A | Transducer | Expired / Lapsed | 1978-01-17 | 1979-10-09 | 13 | Details |
| US4162402A | Ferroelectric imaging system | Expired / Lapsed | 1977-12-19 | 1979-07-24 | 13 | Details |
| US4161726A | Digital joystick control | Expired / Lapsed | 1977-04-06 | 1979-07-17 | 9 | Details |
| US4156927A | Digital processor system with direct access memory | Expired / Lapsed | 1976-08-11 | 1979-05-29 | 9 | Details |
| US4151407A | Low-power, infrared information transmission system | Expired / Lapsed | 1977-04-28 | 1979-04-24 | 12 | Details |
| USD251635S | Case for an electronic calculator or the like | Expired / Lapsed | 1977-11-21 | 1979-04-17 | 1 | Details |
| US4150284A | Medical patient condition monitoring system | Expired / Lapsed | 1977-04-28 | 1979-04-17 | 18 | Details |
| US4147984A | Dual digital processor transceiver | Expired / Lapsed | 1977-04-27 | 1979-04-03 | 14 | Details |
| US4144489A | Simplified frequency to digital converter using all digital… | Expired / Lapsed | 1974-09-23 | 1979-03-13 | 18 | Details |
| US4142207A | Ferroelectric imaging system | Expired / Lapsed | 1977-12-20 | 1979-02-27 | 11 | Details |
| US4140814A | Plasma deposition of transparent conductive layers | Expired / Lapsed | 1977-12-01 | 1979-02-20 | 7 | Details |
| US4141017A | Thermal printer having expanded character set thermal print… | Expired / Lapsed | 1977-02-03 | 1979-02-20 | 9 | Details |
| US4122544A | Electrically alterable floating gate semiconductor memory d… | Expired / Lapsed | 1976-12-27 | 1978-10-24 | 20 | Details |
| US4120744A | Method of fabricating a thermal display device | Expired / Lapsed | 1973-07-26 | 1978-10-17 | 5 | Details |
| USD249388S | Calculator casing | Expired / Lapsed | 1976-09-02 | 1978-09-12 | 1 | Details |
| US4112509A | Electrically alterable floating gate semiconductor memory d… | Expired / Lapsed | 1976-12-27 | 1978-09-05 | 12 | Details |
| US4110639A | Address buffer circuit for high speed semiconductor memory | Expired / Lapsed | 1976-12-09 | 1978-08-29 | 21 | Details |
| US4100530A | Controlled mechanical system | Expired / Lapsed | 1975-12-29 | 1978-07-11 | 12 | Details |
| US4098917A | Method of providing a patterned metal layer on a substrate … | Expired / Lapsed | 1976-09-08 | 1978-07-04 | 15 | Details |
| US4092527A | Calculator with interchangeable keyset | Expired / Lapsed | 1977-01-31 | 1978-05-30 | 14 | Details |
| US4092660A | High power field effect transistor | Expired / Lapsed | 1974-09-16 | 1978-05-30 | 8 | Details |
| US4086451A | Keyboard apparatus | Expired / Lapsed | 1976-12-06 | 1978-04-25 | 14 | Details |
| US4082966A | Mos detector or sensing circuit | Expired / Lapsed | 1976-12-27 | 1978-04-04 | 16 | Details |
| US4080532A | Ferroelectric imaging system | Expired / Lapsed | 1977-05-13 | 1978-03-21 | 32 | Details |
| US4074351A | Variable function programmed calculator | Expired / Lapsed | 1977-02-24 | 1978-02-14 | 26 | Details |
| US4071906A | CTD programmable convolver | Expired / Lapsed | 1976-10-01 | 1978-01-31 | 51 | Details |
| US4064408A | Method and apparatus for detection of waveform peaks and sl… | Expired / Lapsed | 1972-01-10 | 1977-12-20 | 11 | Details |
| US4063198A | Acoustic ridge interactive structure | Expired / Lapsed | 1976-05-12 | 1977-12-13 | 7 | Details |
| US4057299A | Fail safe circuit for vehicle skid control brake system | Expired / Lapsed | 1976-08-09 | 1977-11-08 | 13 | Details |
| US4044567A | Modular, magnetically-coupled drive for a cryogenic refrige… | Expired / Lapsed | 1975-09-02 | 1977-08-30 | 10 | Details |
| US4038535A | Calculator-print cradle system | Expired / Lapsed | 1976-01-05 | 1977-07-26 | 14 | Details |
| US4037242A | Dual injector, floating gate MOS electrically alterable, no… | Expired / Lapsed | 1975-12-29 | 1977-07-19 | 8 | Details |
| US4023176A | Beacon tracking display system | Expired / Lapsed | 1975-04-02 | 1977-05-10 | 6 | Details |
| US4021807A | Beacon tracking system | Expired / Lapsed | 1975-04-02 | 1977-05-03 | 8 | Details |
| US4020381A | Cathode structure for a multibeam cathode ray tube | Expired / Lapsed | 1976-01-15 | 1977-04-26 | 9 | Details |
| US4020465A | Thermal line printer | Expired / Lapsed | 1973-12-26 | 1977-04-26 | 16 | Details |
| USD244086S | Digital watch casing | Expired / Lapsed | 1975-06-16 | 1977-04-19 | 1 | Details |
| US4017885A | Large value capacitor | Expired / Lapsed | 1974-12-13 | 1977-04-12 | 10 | Details |
| US4012601A | Automatic pushbutton dial assembly for a subscriber telepho… | Expired / Lapsed | 1975-04-04 | 1977-03-15 | 9 | Details |
| US4005928A | Nematic liquid crystal displays for low voltage direct curr… | Expired / Lapsed | 1973-08-01 | 1977-02-01 | 2 | Details |
| US4005909A | DC level detector and zero velocity gate circuit for use in… | Expired / Lapsed | 1972-07-03 | 1977-02-01 | 10 | Details |
| US3996655A | Processes of forming insulated gate field effect transistor… | Expired / Lapsed | 1975-08-25 | 1976-12-14 | 5 | Details |
| US3997877A | Timing control means for a magnetic domain memory | Expired / Lapsed | 1975-03-03 | 1976-12-14 | 15 | Details |
| US3996576A | Optical waveguide magnetic bubble detection | Expired / Lapsed | 1975-03-17 | 1976-12-07 | 27 | Details |
| US3996447A | PTC resistance heater | Expired / Lapsed | 1974-11-29 | 1976-12-07 | 7 | Details |
| US3995128A | Pushbutton keyboard system having preformed recessed suppor… | Expired / Lapsed | 1975-01-10 | 1976-11-30 | 12 | Details |
| US3982093A | Thermal printhead with drivers | Expired / Lapsed | 1974-12-16 | 1976-09-21 | 11 | Details |
| US3979719A | Multiple block binary synchronous duplex communications sys… | Expired / Lapsed | 1975-03-03 | 1976-09-07 | 7 | Details |
| US3979604A | Infrared charge-coupled imager | Expired / Lapsed | 1975-02-24 | 1976-09-07 | 15 | Details |
| US3977071A | High depth-to-width ratio etching process for monocrystalli… | Expired / Lapsed | 1969-09-29 | 1976-08-31 | 24 | Details |
| US3970941A | Fast programmable divider with a new 5-gate flip-flop | Expired / Lapsed | 1975-02-18 | 1976-07-20 | 6 | Details |
| US3967227A | Actuator system with ambient temperature compensation | Expired / Lapsed | 1975-01-10 | 1976-06-29 | 28 | Details |
| US3964302A | Vehicle monitoring system | Expired / Lapsed | 1974-11-27 | 1976-06-22 | 21 | Details |
| US3963926A | Detector cold shield | Expired / Lapsed | 1975-01-09 | 1976-06-15 | 10 | Details |
| US3959611A | Pushbutton keyboard system having plural level wire-like co… | Expired / Lapsed | 1975-01-10 | 1976-05-25 | 8 | Details |
| US3955170A | Solid state switch | Expired / Lapsed | 1974-11-29 | 1976-05-04 | 15 | Details |
| US3952174A | Pushbutton keyboard system | Expired / Lapsed | 1974-11-29 | 1976-04-20 | 2 | Details |
| US3944724A | Paging system with selectively actuable pocket printers | Expired / Lapsed | 1972-05-18 | 1976-03-16 | 30 | Details |
| US3942121A | Digital tuning method and system | Expired / Lapsed | 1974-09-09 | 1976-03-02 | 14 | Details |
| US3942035A | Charge coupled device signal processing apparatus using chi… | Expired / Lapsed | 1974-06-24 | 1976-03-02 | 12 | Details |
| US3940747A | High density, high speed random access read-write memory | Expired / Lapsed | 1973-08-02 | 1976-02-24 | 4 | Details |
| US3934335A | Multilayer printed circuit board | Expired / Lapsed | 1974-10-16 | 1976-01-27 | 12 | Details |
| US3934233A | Read-only-memory for electronic calculator | Expired / Lapsed | 1973-09-24 | 1976-01-20 | 15 | Details |
| US3921282A | Insulated gate field effect transistor circuits and their m… | Expired / Lapsed | 1971-02-16 | 1975-11-25 | 3 | Details |
| US3921117A | Solid state electrical switch | Expired / Lapsed | 1974-11-29 | 1975-11-18 | 14 | Details |
| US3909626A | Control of AxB matrix thermal printhead | Expired / Lapsed | 1973-12-28 | 1975-09-30 | 16 | Details |
| US3900944A | Method of contacting and connecting semiconductor devices i… | Expired / Lapsed | 1973-12-19 | 1975-08-26 | 7 | Details |
| US3900224A | Boot | Expired / Lapsed | 1974-01-23 | 1975-08-19 | 8 | Details |
| US3900722A | Multi-chip calculator system having cycle and subcycle timi… | Expired / Lapsed | 1973-09-13 | 1975-08-19 | 16 | Details |
| US3896418A | Synchronous multi-processor system utilizing a single exter… | Expired / Lapsed | 1973-09-25 | 1975-07-22 | 9 | Details |
| US3893205A | Composite metal material and articles made therefrom | Expired / Lapsed | 1970-09-25 | 1975-07-08 | 10 | Details |
| US3889245A | Metal-insulator-semiconductor compatible charge transfer de… | Expired / Lapsed | 1973-07-02 | 1975-06-10 | 22 | Details |
| US3882446A | Interactive horizon building, analysis and editing | Expired / Lapsed | 1971-12-30 | 1975-05-06 | 8 | Details |
| US3881180A | Non-volatile memory cell | Expired / Lapsed | 1973-10-19 | 1975-04-29 | 36 | Details |
| US3877008A | Display drive matrix | Expired / Lapsed | 1973-08-03 | 1975-04-08 | 7 | Details |
| US3864578A | Multiplex system for a vehicle | Expired / Lapsed | 1973-12-26 | 1975-02-04 | 27 | Details |
| US3859718A | Method and apparatus for the assembly of semiconductor devi… | Expired / Lapsed | 1973-01-02 | 1975-01-14 | 8 | Details |
| US3855546A | Folded lobe large optical cavity laser diode | Expired / Lapsed | 1973-09-21 | 1974-12-17 | 9 | Details |
| US3855023A | Manufacture of masks | Expired / Lapsed | 1973-08-21 | 1974-12-17 | 13 | Details |
| US3855577A | Power saving circuit for calculator system | Expired / Lapsed | 1973-06-11 | 1974-12-17 | 9 | Details |
| US3855575A | Ultrasonic remote control receiver | Expired / Lapsed | 1973-04-24 | 1974-12-17 | 14 | Details |
| US3851096A | Surveillance system | Expired / Lapsed | 1972-11-03 | 1974-11-26 | 14 | Details |
| US3832248A | Method of fabrication of insulated gate field effect transi… | Expired / Lapsed | 1971-02-03 | 1974-08-27 | 0 | Details |
| US3827027A | Method and apparatus for producing variable formats from a … | Expired / Lapsed | 1971-09-22 | 1974-07-30 | 7 | Details |
| US3824453A | Method of determining concentrations | Expired / Lapsed | 1972-02-04 | 1974-07-16 | 10 | Details |
| US3819921A | Miniature electronic calculator | Expired / Lapsed | 1972-12-21 | 1974-06-25 | 74 | Details |
| US3819958A | Charge transfer device analog matched filter | Expired / Lapsed | 1972-11-03 | 1974-06-25 | 11 | Details |
| US3808384A | Pushbutton keyboard system | Expired / Lapsed | 1973-02-21 | 1974-04-30 | 18 | Details |
| US3806729A | Charge coupled device ir imager | Expired / Lapsed | 1973-04-30 | 1974-04-23 | 12 | Details |
| US3804982A | Data communication system for serially transferring data be… | Expired / Lapsed | 1972-08-10 | 1974-04-16 | 11 | Details |
| US3798529A | Tachometer circuit | Expired / Lapsed | 1973-01-02 | 1974-03-19 | 13 | Details |
| US3797014A | Automatic radar target detection and scan conversion system | Expired / Lapsed | 1970-09-21 | 1974-03-12 | 13 | Details |
| US3793709A | Process for making a plastic-encapsulated semiconductor dev… | Expired / Lapsed | 1972-04-24 | 1974-02-26 | 12 | Details |
| US3790859A | Electronic package header system having omni-directional he… | Expired / Lapsed | 1972-03-07 | 1974-02-05 | 9 | Details |
| US3787673A | Pipelined high speed arithmetic unit | Expired / Lapsed | 1972-04-28 | 1974-01-22 | 11 | Details |
| US3787223A | Chemical vapor deposition coatings on titanium | Expired / Lapsed | 1971-11-12 | 1974-01-22 | 2 | Details |
| US3787855A | Coherent digital radar target signal enhancement | Expired / Lapsed | 1966-12-30 | 1974-01-22 | 15 | Details |
| US3786269A | Method and apparatus of scanning electromagnetic radiation … | Expired / Lapsed | 1971-12-17 | 1974-01-15 | 14 | Details |
| US3782783A | Programmed oscillator circuit and fixed threshold variable … | Expired / Lapsed | 1972-07-27 | 1974-01-01 | 11 | Details |
| US3783205A | Keyboard switch matrix assembly with improved guide means f… | Expired / Lapsed | 1971-10-27 | 1974-01-01 | 23 | Details |
| US3772577A | Guard ring mesa construction for low and high voltage npn a… | Expired / Lapsed | 1972-02-10 | 1973-11-13 | 20 | Details |
| US3771217A | Integrated circuit arrays utilizing discretionary wiring an… | Expired / Lapsed | 1971-04-16 | 1973-11-13 | 15 | Details |
| US3769562A | Double isolation for electronic devices | Expired / Lapsed | 1972-02-07 | 1973-10-30 | 4 | Details |
| US3757306A | Computing systems cpu | Expired / Lapsed | 1971-08-31 | 1973-09-04 | 9 | Details |
| US3756924A | Method of fabricating a semiconductor device | Expired / Lapsed | 1971-04-01 | 1973-09-04 | 0 | Details |
| US3748439A | Heating apparatus | Expired / Lapsed | 1971-12-27 | 1973-07-24 | 17 | Details |
| US3748548A | Three-dimensional integrated circuits and method of making … | Expired / Lapsed | 1971-09-03 | 1973-07-24 | 11 | Details |
| US3742124A | Color infrared detecting set | Expired / Lapsed | 1971-08-16 | 1973-06-26 | 26 | Details |
| US3740732A | Dynamic data storage cell | Expired / Lapsed | 1971-08-12 | 1973-06-19 | 9 | Details |
| US3738883A | Dielectric isolation processes | Expired / Lapsed | 1968-12-19 | 1973-06-12 | 0 | Details |
| US3737752A | Motor control system | Expired / Lapsed | 1971-04-09 | 1973-06-05 | 12 | Details |
| US3725875A | Probability sort in a storage minimized optimum processor | Expired / Lapsed | 1972-01-14 | 1973-04-03 | 9 | Details |
| US3725907A | Pushbutton keyboard system | Expired / Lapsed | 1971-06-01 | 1973-04-03 | 21 | Details |
| US3725136A | Junction field effect transistor and method of fabrication | Expired / Lapsed | 1971-06-01 | 1973-04-03 | 0 | Details |
| US3724065A | Fabrication of an insulated gate field effect transistor de… | Expired / Lapsed | 1970-10-01 | 1973-04-03 | 15 | Details |
| US3720920A | Open-ended computer with selectable 1/0 control | Expired / Lapsed | 1971-03-01 | 1973-03-13 | 2 | Details |
| US3718202A | Vehicle anti-theft system | Expired / Lapsed | 1970-05-20 | 1973-02-27 | 22 | Details |
| US3716860A | Independent aircraft landing monitor system | Expired / Lapsed | 1970-07-15 | 1973-02-13 | 26 | Details |
| US3716840A | Multimodal search | Expired / Lapsed | 1970-06-01 | 1973-02-13 | 6 | Details |
| US3707609A | Diaphragm pushbutton switch array for keyboards | Expired / Lapsed | 1971-10-27 | 1972-12-26 | 6 | Details |
| US3706975A | High speed mos random access memory | Expired / Lapsed | 1970-10-09 | 1972-12-19 | 19 | Details |
| US3704451A | Automatic data retrieval and display system | Expired / Lapsed | 1971-01-05 | 1972-11-28 | 8 | Details |
| US3703725A | Method for operating a manufacturing line | Expired / Lapsed | 1970-11-02 | 1972-11-21 | 22 | Details |
| US3702986A | Trainable entropy system | Expired / Lapsed | 1970-07-06 | 1972-11-14 | 34 | Details |
| US3702004A | Process and system for routing interconnections between log… | Expired / Lapsed | 1970-01-08 | 1972-10-31 | 25 | Details |
| US3700866A | Synthesized cascaded processor system | Expired / Lapsed | 1970-10-28 | 1972-10-24 | 50 | Details |
| US3697863A | Overcurrent protection system and sensor used therewith | Expired / Lapsed | 1971-01-04 | 1972-10-10 | 11 | Details |
| US3698012A | Multi-character electronic display | Expired / Lapsed | 1968-12-31 | 1972-10-10 | 8 | Details |
| US3689993A | Fabrication of semiconductor devices having low thermal inp… | Expired / Lapsed | 1971-07-26 | 1972-09-12 | 20 | Details |
| US3684968A | Floating point amplifier | Expired / Lapsed | 1970-08-31 | 1972-08-15 | 12 | Details |
| US3684842A | Pushbutton keyboard switch assembly with improved over cent… | Expired / Lapsed | 1970-07-01 | 1972-08-15 | 36 | Details |
| US3682724A | Process for fabricating integrated circuit having matched c… | Expired / Lapsed | 1969-02-05 | 1972-08-08 | 0 | Details |
| US3673331A | Identity verification by voice signals in the frequency dom… | Expired / Lapsed | 1970-01-19 | 1972-06-27 | 44 | Details |
| US3673538A | Composite thermistor temperature sensor having step-functio… | Expired / Lapsed | 1969-12-05 | 1972-06-27 | 12 | Details |
| US3656995A | Chemical vapor deposition coatings on titanium | Expired / Lapsed | 1969-05-02 | 1972-04-18 | 36 | Details |
| US3653999A | Method of forming beam leads on semiconductor devices and i… | Expired / Lapsed | 1970-09-25 | 1972-04-04 | 5 | Details |
| US3653071A | Process for producing circuit artwork utilizing a data proc… | Expired / Lapsed | 1970-01-08 | 1972-03-28 | 41 | Details |
| US3650608A | Method and apparatus for displaying coherent light images | Expired / Lapsed | 1969-12-23 | 1972-03-21 | 7 | Details |
| US3646494A | Electric motor protector sensor | Expired / Lapsed | 1970-01-23 | 1972-02-29 | 7 | Details |
| US3643018A | Alignment system using an electronic scanner | Expired / Lapsed | 1970-07-06 | 1972-02-15 | 32 | Details |
| US3638197A | Electronic printing input-output station | Expired / Lapsed | 1968-12-31 | 1972-01-25 | 39 | Details |
| US3632969A | Electronic printhead protection | Expired / Lapsed | 1969-05-08 | 1972-01-04 | 18 | Details |
| US3630079A | Navigation method and apparatus utilizing multiple sensors | Expired / Lapsed | 1969-03-27 | 1971-12-28 | 24 | Details |
| US3629800A | Gapped deconvolution reverberation removal | Expired / Lapsed | 1969-09-18 | 1971-12-21 | 21 | Details |
| US3629018A | Process for the fabrication of light-emitting semiconductor… | Expired / Lapsed | 1969-01-23 | 1971-12-21 | 12 | Details |
| US3622762A | Circuit design by an automated data processing machine | Expired / Lapsed | 1969-06-11 | 1971-11-23 | 38 | Details |
| US3619642A | Multiphase binary shift register | Expired / Lapsed | 1969-11-12 | 1971-11-09 | 12 | Details |
| US3617694A | Electrical contact means for hair curler having elongated a… | Expired / Lapsed | 1970-01-27 | 1971-11-02 | 6 | Details |
| US3617359A | Process for the vapor deposition of metals | Expired / Lapsed | 1969-01-13 | 1971-11-02 | 5 | Details |
| US3616401A | Sputtered multilayer ohmic molygold contacts for semiconduc… | Expired / Lapsed | 1966-06-30 | 1971-10-26 | 5 | Details |
| US3615929A | Method of forming epitaxial region of predetermined thickne… | Expired / Lapsed | 1965-07-08 | 1971-10-26 | 9 | Details |
| US3614742A | Automatic context switching in a multiprogrammed multiproce… | Expired / Lapsed | 1968-07-09 | 1971-10-19 | 12 | Details |
| US3609829A | Apparatus for the formation of silica articles | Expired / Lapsed | 1968-07-12 | 1971-10-05 | 0 | Details |
| US3609252A | Transducer apparatus and system utilizing insulated gate se… | Expired / Lapsed | 1970-02-24 | 1971-09-28 | 22 | Details |
| US3609457A | Thermal protective system utilizing fault-responsive shunt … | Expired / Lapsed | 1969-05-29 | 1971-09-28 | 10 | Details |
| US3609461A | Apparatus for protecting semiconductor devices utilizing a … | Expired / Lapsed | 1968-07-08 | 1971-09-28 | 15 | Details |
| US3603963A | Seismic format generator | Expired / Lapsed | 1967-12-29 | 1971-09-07 | 4 | Details |
| US3601871A | Method for fabricating magnetic read-write head array and p… | Expired / Lapsed | 1968-09-30 | 1971-08-31 | 6 | Details |
| US3601666A | Titanium tungsten-gold contacts for semiconductor devices | Expired / Lapsed | 1969-08-21 | 1971-08-24 | 5 | Details |
| US3601669A | Integrated heater element array and drive matrix therefor | Expired / Lapsed | 1969-05-07 | 1971-08-24 | 9 | Details |
| US3600650A | Protected semiconductor device having sensor thermally coup… | Expired / Lapsed | 1968-12-30 | 1971-08-17 | 4 | Details |
| US3597834A | Method in forming electrically continuous circuit through i… | Expired / Lapsed | 1968-02-14 | 1971-08-10 | 8 | Details |
| US3596258A | Expanded search method and system in trained processors | Expired / Lapsed | 1969-12-30 | 1971-07-27 | 14 | Details |
| US3593070A | Submount for semiconductor assembly | Expired / Lapsed | 1968-12-17 | 1971-07-13 | 2 | Details |
| US3586939A | Electrothermal motor starting apparatus | Expired / Lapsed | 1968-06-07 | 1971-06-22 | 13 | Details |
| US3584189A | Temperature stabilizer for integrated circuits | Expired / Lapsed | 1968-08-13 | 1971-06-08 | 14 | Details |
| US3577137A | Temperature compensated electronic display | Expired / Lapsed | 1968-12-31 | 1971-05-04 | 27 | Details |
| US3576475A | Field effect transistors for integrated circuits and method… | Expired / Lapsed | 1968-08-29 | 1971-04-27 | 10 | Details |
| US3573855A | Computer memory protection | Expired / Lapsed | 1968-12-31 | 1971-04-06 | 12 | Details |
| US3574010A | Fabrication of metal insulator semiconductor field effect t… | Expired / Lapsed | 1968-12-30 | 1971-04-06 | 0 | Details |
| US3573852A | Variable time slot assignment of virtual processors | Expired / Lapsed | 1968-08-30 | 1971-04-06 | 12 | Details |
| US3573754A | Information transfer system | Expired / Lapsed | 1967-07-03 | 1971-04-06 | 13 | Details |
| US3570114A | Bi-layer insulation structure including polycrystalline sem… | Expired / Lapsed | 1969-02-27 | 1971-03-16 | 0 | Details |
| US3569677A | Data readout system | Expired / Lapsed | 1965-12-07 | 1971-03-09 | 39 | Details |
| US3555502A | Aerial drop telemetering sensor | Expired / Lapsed | 1969-02-12 | 1971-01-12 | 0 | Details |
| US3554628A | Infrared optical system utilizing circular scanning | Expired / Lapsed | 1966-05-03 | 1971-01-12 | 0 | Details |
| US3553364A | Electromechanical light valve | Expired / Lapsed | 1968-03-15 | 1971-01-05 | 19 | Details |
| US3553722A | Multiple output convolution multiplier | Expired / Lapsed | 1967-02-15 | 1971-01-05 | 0 | Details |
| US3553689A | Terrain avoidance system | Expired / Lapsed | 1961-12-29 | 1971-01-05 | 0 | Details |
| US3546539A | Integrated circuit mounting panel | Expired / Lapsed | 1968-05-28 | 1970-12-08 | 0 | Details |
| US3541543A | Binary decoder | Expired / Lapsed | 1966-07-25 | 1970-11-17 | 2 | Details |
| US3539984A | Optimum horizontal stacking | Expired / Lapsed | 1969-09-22 | 1970-11-10 | 0 | Details |
| US3539807A | Temperature - emissivity separation and temperature indepen… | Expired / Lapsed | 1968-04-04 | 1970-11-10 | 0 | Details |
| US3539256A | Step and repeat camera with computer controlled film table | Expired / Lapsed | 1967-10-18 | 1970-11-10 | 0 | Details |
| US3536921A | Passive control of focal distances | Expired / Lapsed | 1967-03-31 | 1970-10-27 | 0 | Details |
| US3534267A | Integrated 94 ghz. local oscillator and mixer | Expired / Lapsed | 1966-12-30 | 1970-10-13 | 0 | Details |
| US3534234A | Modified planar process for making semiconductor devices ha… | Expired / Lapsed | 1966-12-15 | 1970-10-13 | 0 | Details |
| US3529299A | Programmable high-speed read-only memory devices | Expired / Lapsed | 1966-10-21 | 1970-09-15 | 0 | Details |
| US3523905A | Method of preparing phosphors and color display systems con… | Expired / Lapsed | 1967-12-14 | 1970-08-11 | 0 | Details |
| US3523039A | Transition metal oxide bodies having selectively formed con… | Expired / Lapsed | 1968-07-29 | 1970-08-04 | 0 | Details |
| US3523222A | Semiconductive contacts | Expired / Lapsed | 1966-09-15 | 1970-08-04 | 0 | Details |
| US3523038A | Process for making ohmic contact to planar germanium semico… | Expired / Lapsed | 1965-06-02 | 1970-08-04 | 0 | Details |
| US3521212A | Electric motor protection sensor | Expired / Lapsed | 1968-06-21 | 1970-07-21 | 0 | Details |
| US3519901A | Bi-layer insulation structure including polycrystalline sem… | Expired / Lapsed | 1968-01-29 | 1970-07-07 | 0 | Details |
| US3514849A | Method for making a glass-to-metal seal | Expired / Lapsed | 1968-11-15 | 1970-06-02 | 0 | Details |
| US3501615A | Integrated heater element array and drive matrix | Expired / Lapsed | 1967-09-29 | 1970-03-17 | 0 | Details |
| US3496333A | Thermal printer | Expired / Lapsed | 1968-09-26 | 1970-02-17 | 0 | Details |
| US3496336A | Electric heater | Expired / Lapsed | 1967-10-25 | 1970-02-17 | 0 | Details |
| US3490124A | Composite metal layers for fabricating deep drawn articles | Expired / Lapsed | 1967-02-07 | 1970-01-20 | 0 | Details |
| US3489884A | Heated windshield wiper and blade therefor | Expired / Lapsed | 1966-12-28 | 1970-01-13 | 0 | Details |
| US3484932A | Method of making integrated circuits | Expired / Lapsed | 1968-10-09 | 1969-12-23 | 0 | Details |
| US3477848A | Method for producing sets of photomask having accurate regi… | Expired / Lapsed | 1964-12-14 | 1969-11-11 | 0 | Details |
| US3476101A | Gas-fired oven | Expired / Lapsed | 1967-12-28 | 1969-11-04 | 0 | Details |
| US3476941A | Phototransistor having light sensitive diode connected acro… | Expired / Lapsed | 1967-09-27 | 1969-11-04 | 0 | Details |
| US3473045A | Complementary j-k flip-flop using transistor logic | Expired / Lapsed | 1966-04-18 | 1969-10-14 | 2 | Details |
| US3470377A | Two-axis automatic autocollimator | Expired / Lapsed | 1966-11-04 | 1969-09-30 | 0 | Details |
| US3465091A | Universal circuit board and method of manufacture | Expired / Lapsed | 1967-02-24 | 1969-09-02 | 0 | Details |
| US3463975A | Unitary semiconductor high speed switching device utilizing… | Expired / Lapsed | 1964-12-31 | 1969-08-26 | 0 | Details |
| US3459504A | Formation of carbide compounds by vapor deposition on graph… | Expired / Lapsed | 1966-10-21 | 1969-08-05 | 0 | Details |
| US3449148A | Formation of electron barriers on phosphor particles | Expired / Lapsed | 1966-06-30 | 1969-06-10 | 0 | Details |
| US3442011A | Method for isolating individual devices in an integrated ci… | Expired / Lapsed | 1965-06-30 | 1969-05-06 | 0 | Details |
| US3440609A | Digital synchronization system | Expired / Lapsed | 1965-12-07 | 1969-04-22 | 0 | Details |
| US3437170A | Control of energy spectrum in marine seismic exploration | Expired / Lapsed | 1966-12-12 | 1969-04-08 | 0 | Details |
| US3435520A | Braze grounded lead header | Expired / Lapsed | 1966-02-28 | 1969-04-01 | 0 | Details |
| US3435504A | Method of making tube-in-sheet metal products | Expired / Lapsed | 1965-12-15 | 1969-04-01 | 0 | Details |
| US3436611A | Insulation structure for crossover leads in integrated circ… | Expired / Lapsed | 1965-01-25 | 1969-04-01 | 0 | Details |
| US3436549A | P-n photocell epitaxially deposited on transparent substrat… | Expired / Lapsed | 1964-11-06 | 1969-04-01 | 4 | Details |
| US3434020A | Ohmic contacts consisting of a first level of molybdenum-go… | Expired / Lapsed | 1966-12-30 | 1969-03-18 | 2 | Details |
| US3433139A | Electro-optic controls for reflex cameras | Expired / Lapsed | 1966-10-19 | 1969-03-18 | 0 | Details |
| US3432778A | Solid state microstripline attenuator | Expired / Lapsed | 1966-12-23 | 1969-03-11 | 0 | Details |
| US3426662A | Movie camera iris control device | Expired / Lapsed | 1966-06-30 | 1969-02-11 | 2 | Details |
| US3427436A | Temperature controller | Expired / Lapsed | 1966-05-10 | 1969-02-11 | 2 | Details |
| US3423677A | Test system for automatically making static and dynamic tes… | Expired / Lapsed | 1965-12-07 | 1969-01-21 | 0 | Details |
| US3422435A | Digital integrator | Expired / Lapsed | 1966-12-05 | 1969-01-14 | 0 | Details |
| US3418573A | Universal electronic test system for automatically making s… | Expired / Lapsed | 1965-08-25 | 1968-12-24 | 0 | Details |
| US3417300A | Economy high power package | Expired / Lapsed | 1965-12-15 | 1968-12-17 | 0 | Details |
| US3416042A | Microwave integrated circuit mixer | Expired / Lapsed | 1964-09-18 | 1968-12-10 | 2 | Details |
| US3414704A | Self-regulating heating device | Expired / Lapsed | 1965-02-25 | 1968-12-03 | 0 | Details |
| US3413480A | Electro-optical transistor switching device | Expired / Lapsed | 1963-11-29 | 1968-11-26 | 2 | Details |
| US3411145A | Multiplexing and demultiplexing of related time series data… | Expired / Lapsed | 1966-07-01 | 1968-11-12 | 1 | Details |
| US3409902A | High speed thermal printer | Expired / Lapsed | 1966-05-27 | 1968-11-05 | 0 | Details |
| US3408238A | Use of both silicon oxide and phosphorus oxide to mask agai… | Expired / Lapsed | 1965-06-02 | 1968-10-29 | 0 | Details |
| US3403439A | Electrical isolation of circuit components of monolithic in… | Expired / Lapsed | 1966-04-29 | 1968-10-01 | 2 | Details |
| US3402254A | Composite electrical bus bar | Expired / Lapsed | 1966-12-02 | 1968-09-17 | 0 | Details |
| US3402002A | 45deg. cut low voltage optical modulator | Expired / Lapsed | 1964-05-28 | 1968-09-17 | 0 | Details |
| US3396312A | Air-isolated integrated circuits | Expired / Lapsed | 1965-06-30 | 1968-08-06 | 0 | Details |
| US3393870A | Means for controlling temperature rise of temperature stabi… | Expired / Lapsed | 1966-12-20 | 1968-07-23 | 2 | Details |
| US3394390A | Method for making compond semiconductor materials | Expired / Lapsed | 1965-03-31 | 1968-07-23 | 0 | Details |
| US3393328A | Thermal coupling elements | Expired / Lapsed | 1964-09-04 | 1968-07-16 | 0 | Details |
| US3392370A | Gain control circuit using digital control signals | Expired / Lapsed | 1965-10-24 | 1968-07-09 | 0 | Details |
| US3390025A | Method of forming small geometry diffused junction semicond… | Expired / Lapsed | 1967-08-14 | 1968-06-25 | 2 | Details |
| US3386187A | Teaching machine | Expired / Lapsed | 1966-02-28 | 1968-06-04 | 2 | Details |
| US3383614A | Temperature stabilized semiconductor devices | Expired / Lapsed | 1965-06-28 | 1968-05-14 | 0 | Details |
| US3383568A | Semiconductor device utilizing glass and oxides as an insul… | Expired / Lapsed | 1965-02-04 | 1968-05-14 | 0 | Details |
| US3379584A | Semiconductor wafer with at least one epitaxial layer and m… | Expired / Lapsed | 1964-09-04 | 1968-04-23 | 0 | Details |
| US3371399A | Method of making inflated metal products | Expired / Lapsed | 1964-08-17 | 1968-03-05 | 0 | Details |
| US3370995A | Method for fabricating electrically isolated semiconductor … | Expired / Lapsed | 1965-08-02 | 1968-02-27 | 2 | Details |
| US3371211A | Ge-s-te glass compositions and infrared detection system | Expired / Lapsed | 1965-04-22 | 1968-02-27 | 0 | Details |
| US3365618A | Thermally responsive protection circuit | Expired / Lapsed | 1965-10-21 | 1968-01-23 | 2 | Details |
| US3365628A | Metallic contacts for semiconductor devices | Expired / Lapsed | 1965-09-16 | 1968-01-23 | 0 | Details |
| US3364300A | Modular circuit boards | Expired / Lapsed | 1965-03-19 | 1968-01-16 | 0 | Details |
| US3356786A | Modular circuit boards | Expired / Lapsed | 1964-10-07 | 1967-12-05 | 1 | Details |
| US3354394A | Receptacle for transistors or integrated circuits to be tes… | Expired / Lapsed | 1967-01-12 | 1967-11-21 | 0 | Details |
| US3351936A | Method and apparatus for exploring the earth with electroma… | Expired / Lapsed | 1966-01-10 | 1967-11-07 | 2 | Details |
| US3350760A | Capacitor for miniature electronic circuits or the like | Expired / Lapsed | 1964-03-16 | 1967-11-07 | 2 | Details |
| US3346936A | Manufacture of inflated metal products | Expired / Lapsed | 1964-08-17 | 1967-10-17 | 2 | Details |
| US3341381A | Method of making a semiconductor by selective impurity diff… | Expired / Lapsed | 1966-10-24 | 1967-09-12 | 2 | Details |
| US3341753A | Metallic contacts for semiconductor devices | Expired / Lapsed | 1964-10-21 | 1967-09-12 | 1 | Details |
| US3341785A | Integrated wide-band amplifier system using negative feedba… | Expired / Lapsed | 1964-07-13 | 1967-09-12 | 2 | Details |
| US3341787A | Laser system with pumping by semiconductor radiant diode | Expired / Lapsed | 1962-12-03 | 1967-09-12 | 0 | Details |
| US3338476A | Heating device for use with aerosol containers | Expired / Lapsed | 1965-10-24 | 1967-08-29 | 2 | Details |
| US3334248A | Space charge barrier hot electron cathode | Expired / Lapsed | 1965-02-02 | 1967-08-01 | 2 | Details |
| US3330030A | Method of making semiconductor devices | Expired / Lapsed | 1964-05-04 | 1967-07-11 | 1 | Details |
| US3323241A | Passive information displays | Expired / Lapsed | 1965-10-24 | 1967-06-06 | 2 | Details |
| US3321631A | Electro-optical switch device | Expired / Lapsed | 1963-11-29 | 1967-05-23 | 2 | Details |
| US3319135A | Low capacitance planar diode | Expired / Lapsed | 1964-09-03 | 1967-05-09 | 2 | Details |
| US3316131A | Method of producing a field-effect transistor | Expired / Lapsed | 1963-08-15 | 1967-04-25 | 2 | Details |
| US3315176A | Isolated differential amplifier | Expired / Lapsed | 1963-11-29 | 1967-04-18 | 2 | Details |
| US3308308A | Square-wave pulse-generator employing triggered avalanche t… | Expired / Lapsed | 1964-06-09 | 1967-03-07 | 2 | Details |
| US3304683A | Wall structure | Expired / Lapsed | 1964-02-05 | 1967-02-21 | 2 | Details |
| US3304431A | Photosensitive transistor chopper using light emissive diode | Expired / Lapsed | 1963-11-29 | 1967-02-14 | 2 | Details |
| US3304430A | High frequency electro-optical device using photosensitive … | Expired / Lapsed | 1963-11-29 | 1967-02-14 | 2 | Details |
| US3304403A | Laser welding of contacts | Expired / Lapsed | 1963-10-14 | 1967-02-14 | 0 | Details |
| US3302180A | Digital data handling | Expired / Lapsed | 1963-04-09 | 1967-01-31 | 4 | Details |
| US3300841A | Method of junction passivation and product | Expired / Lapsed | 1962-07-17 | 1967-01-31 | 2 | Details |
| US3296587A | Intrusion detector system | Expired / Lapsed | 1963-02-20 | 1967-01-03 | 2 | Details |
| US3295087A | Temperature sensor | Expired / Lapsed | 1965-10-20 | 1966-12-27 | 2 | Details |
| US3292012A | Low offset voltage logic gate | Expired / Lapsed | 1964-05-22 | 1966-12-13 | 2 | Details |
| US3290570A | Multilevel expanded metallic contacts for semiconductor dev… | Expired / Lapsed | 1964-04-28 | 1966-12-06 | 2 | Details |
| US3277467A | Time sharing radar-altimeter | Expired / Lapsed | 1964-12-16 | 1966-10-04 | 2 | Details |
| US3274541A | Seismic velocity filtering | Expired / Lapsed | 1963-02-15 | 1966-09-20 | 2 | Details |
| US3268374A | Method of producing a field-effect transistor | Expired / Lapsed | 1963-04-24 | 1966-08-23 | 2 | Details |
| US3253161A | Electronic switch control circuit | Expired / Lapsed | 1963-10-21 | 1966-05-24 | 2 | Details |
| US3246171A | High speed comparator | Expired / Lapsed | 1962-11-05 | 1966-04-12 | 2 | Details |
| US3242007A | Pyrolytic deposition of protective coatings of semiconducto… | Expired / Lapsed | 1961-11-15 | 1966-03-22 | 2 | Details |
| US3241013A | Integral transistor pair for use as chopper | Expired / Lapsed | 1962-10-25 | 1966-03-15 | 2 | Details |
| US3230428A | Field-effect transistor configuration | Expired / Lapsed | 1960-05-02 | 1966-01-18 | 2 | Details |
| US3222882A | Refrigeration temperature and frost control | Expired / Lapsed | 1964-01-17 | 1965-12-14 | 2 | Details |
| US3222586A | Shunt motor control circuit | Expired / Lapsed | 1962-04-13 | 1965-12-07 | 2 | Details |
| US3222610A | Low frequency amplifier employing field effect device | Expired / Lapsed | 1960-05-02 | 1965-12-07 | 2 | Details |
| US3214666A | Motor speed controller | Expired / Lapsed | 1961-12-20 | 1965-10-26 | 1 | Details |
| US3211972A | Semiconductor networks | Expired / Lapsed | 1964-06-24 | 1965-10-12 | 2 | Details |
| US3211046A | Split image, high scanning rate optical system with constan… | Expired / Lapsed | 1962-01-04 | 1965-10-12 | 2 | Details |
| US3203166A | Thermostatic elements | Expired / Lapsed | 1961-09-08 | 1965-08-31 | 2 | Details |
| US3201667A | Titanium dioxide capacitor and method for making same | Expired / Lapsed | 1960-12-20 | 1965-08-17 | 2 | Details |
| US3196329A | Symmetrical switching diode | Expired / Lapsed | 1963-03-08 | 1965-07-20 | 2 | Details |
| US3195029A | Series motor control | Expired / Lapsed | 1962-09-10 | 1965-07-13 | 2 | Details |
| US3191112A | Motor control system utilizing semiconductor controlled rec… | Expired / Lapsed | 1961-12-26 | 1965-06-22 | 2 | Details |
| US3184823A | Method of making silicon transistors | Expired / Lapsed | 1960-09-09 | 1965-05-25 | 2 | Details |
| US3184714A | Apparatus for use with a credit card | Expired / Lapsed | 1963-04-15 | 1965-05-18 | 2 | Details |
| US3184658A | Semiconductor device and header combination | Expired / Lapsed | 1962-05-22 | 1965-05-18 | 2 | Details |
| US3175076A | Automatic control system for oil well heater | Expired / Lapsed | 1961-10-05 | 1965-03-23 | 0 | Details |
| US3175077A | Electrical heater control system | Expired / Lapsed | 1961-10-05 | 1965-03-23 | 0 | Details |
| US3161810A | Temperature compensated transistor | Expired / Lapsed | 1959-12-11 | 1964-12-15 | 2 | Details |
| US3160708A | Electronic stethoscope | Expired / Lapsed | 1961-07-13 | 1964-12-08 | 2 | Details |
| US3158759A | System for sampling, holding and comparing consecutive anal… | Expired / Lapsed | 1962-10-31 | 1964-11-24 | 2 | Details |
| US3156976A | Method of making composite metal products | Expired / Lapsed | 1961-03-17 | 1964-11-17 | 1 | Details |
| US3144585A | Logic control system for electrical power transmission netw… | Expired / Lapsed | 1962-05-22 | 1964-08-11 | 2 | Details |
| US3144646A | Doppler system | Expired / Lapsed | 1959-07-08 | 1964-08-11 | 2 | Details |
| US3138650A | Optical system | Expired / Lapsed | 1962-01-22 | 1964-06-23 | 2 | Details |
| US3138744A | Miniaturized self-contained circuit modules and method of f… | Expired / Lapsed | 1959-05-06 | 1964-06-23 | 2 | Details |
| US3138721A | Miniature semiconductor network diode and gate | Expired / Lapsed | 1959-05-06 | 1964-06-23 | 1 | Details |
| US3138743A | Miniaturized electronic circuits | Expired / Lapsed | 1959-02-06 | 1964-06-23 | 2 | Details |
| US3134912A | Multivibrator employing field effect devices as transistors… | Expired / Lapsed | 1960-05-02 | 1964-05-26 | 2 | Details |
| US3130377A | Semiconductor integrated circuit utilizing field-effect tra… | Expired / Lapsed | 1960-05-02 | 1964-04-21 | 2 | Details |
| US3118016A | Conductor laminate packaging of solid-state circuits | Expired / Lapsed | 1961-08-14 | 1964-01-14 | 2 | Details |
| US3115581A | Miniature semiconductor integrated circuit | Expired / Lapsed | 1959-05-06 | 1963-12-24 | 2 | Details |
| US3113376A | Alloying | Expired / Lapsed | 1958-07-22 | 1963-12-10 | 2 | Details |
| US3112411A | Ring counter utilizing bipolar field-effect devices | Expired / Lapsed | 1960-05-02 | 1963-11-26 | 1 | Details |
| US3098954A | Mesa type transistor and method of fabrication thereof | Expired / Lapsed | 1960-04-27 | 1963-07-23 | 2 | Details |
| US3094388A | Method of producing gallium or aluminum arsenides and phosp… | Expired / Lapsed | 1959-12-11 | 1963-06-18 | 2 | Details |
| US3088853A | Method of purifying gallium by recrystallization | Expired / Lapsed | 1959-11-17 | 1963-05-07 | 2 | Details |
| US3083441A | Method for fabricating transistors | Expired / Lapsed | 1959-04-13 | 1963-04-02 | 4 | Details |
| US3082131A | Versatile transistor structure | Expired / Lapsed | 1959-01-16 | 1963-03-19 | 2 | Details |
| US3079557A | Transponder | Expired / Lapsed | 1960-11-02 | 1963-02-26 | 2 | Details |
| US3078328A | Solar cell | Expired / Lapsed | 1959-11-12 | 1963-02-19 | 2 | Details |
| US3076253A | Materials for and methods of manufacturing semiconductor de… | Expired / Lapsed | 1955-03-10 | 1963-02-05 | 2 | Details |
| US3075607A | Seismic exploration | Expired / Lapsed | 1958-12-31 | 1963-01-29 | 2 | Details |
| US3072832A | Semiconductor structure fabrication | Expired / Lapsed | 1959-05-06 | 1963-01-08 | 2 | Details |
| US3070880A | Method of bonding the abutted edges of metal members | Expired / Lapsed | 1959-09-30 | 1963-01-01 | 2 | Details |
| US3070762A | Voltage tuned resistance-capacitance filter, consisting of … | Expired / Lapsed | 1960-05-02 | 1962-12-25 | 0 | Details |
| US3069493A | Sweep synchronization system for infrared ground-scanning d… | Expired / Lapsed | 1958-11-18 | 1962-12-18 | 0 | Details |
| US3068452A | Memory matrix system | Expired / Lapsed | 1959-08-14 | 1962-12-11 | 0 | Details |
| US3065427A | Phase sensitive detector | Expired / Lapsed | 1958-08-29 | 1962-11-20 | 0 | Details |
| US3064175A | Transistorized variable speed motor control | Expired / Lapsed | 1960-09-23 | 1962-11-13 | 0 | Details |
| US3063631A | Method and apparatus for recording digital counter values | Expired / Lapsed | 1959-10-19 | 1962-11-13 | 0 | Details |
| US3061799A | Frequency modulated multivibrator with a constant duty cycle | Expired / Lapsed | 1959-09-22 | 1962-10-30 | 0 | Details |
| US3059157A | Semiconductor rectifier | Expired / Lapsed | 1958-11-14 | 1962-10-16 | 0 | Details |
| US3050638A | Temperature stabilized biasing circuit for transistor havin… | Expired / Lapsed | 1955-12-02 | 1962-08-21 | 0 | Details |
| US3046487A | Differential transistor amplifier | Expired / Lapsed | 1958-03-21 | 1962-07-24 | 0 | Details |
| US3041133A | Method and apparatus for preventing breakage of liners | Expired / Lapsed | 1960-09-27 | 1962-06-26 | 1 | Details |
| US3041213A | Diffused junction semiconductor device and method of making | Expired / Lapsed | 1958-11-17 | 1962-06-26 | 1 | Details |
| US3036223A | Variable frequency synthesizer | Expired / Lapsed | 1958-01-31 | 1962-05-22 | 0 | Details |
| US3035170A | Automatic gain controls for radios | Expired / Lapsed | 1956-05-15 | 1962-05-15 | 0 | Details |
| US3031628A | Transistor oscillator | Expired / Lapsed | 1958-03-26 | 1962-04-24 | 0 | Details |
| US3028598A | Azimuth transfer system | Expired / Lapsed | 1958-11-13 | 1962-04-03 | 0 | Details |
| US3025439A | Mounting for silicon semiconductor device | Expired / Lapsed | 1960-09-22 | 1962-03-13 | 1 | Details |
| US3021595A | Ohmic contacts for silicon conductor devices and method for… | Expired / Lapsed | 1958-07-02 | 1962-02-20 | 2 | Details |
| US3022454A | Transistor direct current motor control | Expired / Lapsed | 1956-08-17 | 1962-02-20 | 0 | Details |
| US3018962A | Apparatus for determining the correlation coefficients of d… | Expired / Lapsed | 1954-10-08 | 1962-01-30 | 0 | Details |
| US3018468A | Apparatus for reducing and recording data | Expired / Lapsed | 1955-12-12 | 1962-01-23 | 0 | Details |
| US3013138A | Thermostat | Expired / Lapsed | 1959-04-10 | 1961-12-12 | 0 | Details |
| US2996800A | Method of making ohmic connections to silicon semiconductors | Expired / Lapsed | 1956-11-28 | 1961-08-22 | 2 | Details |
| US2992127A | Novel graphite articles and method of making | Expired / Lapsed | 1958-12-23 | 1961-07-11 | 2 | Details |
| US2980860A | Hall effect device | Expired / Lapsed | 1957-12-26 | 1961-04-18 | 0 | Details |
| US2972733A | Method and apparatus for analyzing data | Expired / Lapsed | 1955-07-19 | 1961-02-21 | 0 | Details |
| US2970226A | Electronic timing device | Expired / Lapsed | 1956-11-20 | 1961-01-31 | 0 | Details |
| US2958786A | Transistor transducer | Expired / Lapsed | 1955-12-16 | 1960-11-01 | 0 | Details |
| US2956913A | Transistor and method of making same | Expired / Lapsed | 1958-11-20 | 1960-10-18 | 2 | Details |
| US2949498A | Solar energy converter | Expired / Lapsed | 1955-10-31 | 1960-08-16 | 0 | Details |
| US2934685A | Transistors and method of fabricating same | Expired / Lapsed | 1957-01-09 | 1960-04-26 | 0 | Details |
| US2907847A | Electrical switch structure | Expired / Lapsed | 1957-06-13 | 1959-10-06 | 0 | Details |
| US2907715A | Method for producing single-crystal semiconductor material | Expired / Lapsed | 1955-04-04 | 1959-10-06 | 2 | Details |
| US2907320A | Pressure capacitance transducer | Expired / Lapsed | 1954-01-11 | 1959-10-06 | 0 | Details |
| US2878152A | Grown junction transistors | Expired / Lapsed | 1956-11-28 | 1959-03-17 | 2 | Details |
| US2847623A | Full wave rectifier structure and method of preparing same | Expired / Lapsed | 1955-07-27 | 1958-08-12 | 2 | Details |
| US2845374A | Semiconductor unit and method of making same | Expired / Lapsed | 1955-05-23 | 1958-07-29 | 2 | Details |
| US2845372A | Grown junction type transistors and method of making same | Expired / Lapsed | 1954-05-10 | 1958-07-29 | 2 | Details |
| US2827367A | Etching of semiconductor materials | Expired / Lapsed | 1955-08-30 | 1958-03-18 | 2 | Details |
| US2785096A | Manufacture of junction-containing silicon crystals | Expired / Lapsed | 1955-05-25 | 1957-03-12 | 2 | Details |
| US2780757A | Rectifier structure | Expired / Lapsed | 1955-08-02 | 1957-02-05 | 0 | Details |
| US2763780A | Binary frequency divider | Expired / Lapsed | 1955-04-18 | 1956-09-18 | 0 | Details |
| US2635705A | Method and apparatus for seismic prospecting in which seism… | Expired / Lapsed | 1948-10-22 | 1953-04-21 | 0 | Details |
| US2579852A | Multiple recorder | Expired / Lapsed | 1949-10-17 | 1951-12-25 | 0 | Details |