Fujitsu Ltd
Fujitsu LtActive Patents
0
Total Holdings
200
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| JPH0933608A | Test card for semiconductor test | Expired / Lapsed | 1995-07-24 | — | 0 | Details |
| EP0686976A2 | Data management system for programming-limited type semicon… | Expired / Lapsed | 1992-11-25 | — | 19 | Details |
| EP0497327A2 | An animation display processor | Expired / Lapsed | 1992-01-29 | — | 13 | Details |
| EP0486304A2 | Initialising computer systems | Expired / Lapsed | 1991-11-14 | — | 9 | Details |
| JPH0521954A | Method for manufacturing printed wiring board | Expired / Lapsed | 1991-07-12 | — | 0 | Details |
| JPH052477A | Graphical user interface creation method | Expired / Lapsed | 1991-06-26 | — | 0 | Details |
| JPH03250697A | Power supply cooling module | Expired / Lapsed | 1990-02-28 | — | 0 | Details |
| JPH039638A | Fast line data transmission system | Expired / Lapsed | 1989-06-07 | — | 0 | Details |
| JPH022719A | Digital pll circuit | Expired / Lapsed | 1988-06-17 | — | 0 | Details |
| EP0287061A2 | Apparatus for controlling calls in a mobile communication s… | Expired / Lapsed | 1988-04-13 | — | 11 | Details |
| JPS6472394A | Synchronous type semiconductor storage device | Expired / Lapsed | 1987-09-11 | — | 0 | Details |
| EP0258739A2 | Cordless telephone set operated under multi-channel access | Expired / Lapsed | 1987-08-19 | — | 13 | Details |
| EP0247927A1 | Apparatus and method for high temperature environmental tes… | Expired / Lapsed | 1987-05-15 | — | 13 | Details |
| JPS63122148A | Manufacture of semiconductor device | Expired / Lapsed | 1986-11-11 | — | 0 | Details |
| JPS6358558A | Garbage collection processing system | Expired / Lapsed | 1986-08-29 | — | 0 | Details |
| EP0178922A2 | Semiconductor memory device | Expired / Lapsed | 1985-10-16 | — | 1 | Details |
| EP0167365A2 | Standard cell LSIs | Expired / Lapsed | 1985-06-28 | — | 11 | Details |
| EP0150997A2 | Measuring characteristics of an ultrasonic wave medium | Expired / Lapsed | 1985-01-25 | — | 45 | Details |
| EP0145606A2 | Semiconductor memory device | Expired / Lapsed | 1984-12-12 | — | 13 | Details |
| JPS6166409A | Majority decision logic circuit | Expired / Lapsed | 1984-09-10 | — | 0 | Details |
| EP0133131A2 | Master slice IC device | Expired / Lapsed | 1984-07-26 | — | 9 | Details |
| EP0119844A2 | Measuring apparatus utilizing spectrum profile | Expired / Lapsed | 1984-03-16 | — | 13 | Details |
| JPS60194692A | Infrared video display device | Expired / Lapsed | 1984-03-14 | — | 0 | Details |
| EP0128635A2 | Measuring non-linear parameter of acoustic medium | Expired / Lapsed | 1984-03-09 | — | 25 | Details |
| JPS60119926A | Ultrasonic non-linear parameter distribution measuring appa… | Expired / Lapsed | 1983-12-02 | — | 0 | Details |
| EP0098067A2 | Method for producing multilayered glass-ceramic structure w… | Expired / Lapsed | 1983-06-09 | — | 10 | Details |
| EP0091768A2 | Measuring characteristics of living tissues by ultrasonic w… | Expired / Lapsed | 1983-04-05 | — | 12 | Details |
| EP0073641A2 | Integrated circuit device | Expired / Lapsed | 1982-08-25 | — | 8 | Details |
| EP0072330A2 | Pressure measuring system with ultrasonic wave | Expired / Lapsed | 1982-08-06 | — | 11 | Details |
| JPS595480A | Group page control processing system | Expired / Lapsed | 1982-06-30 | — | 0 | Details |
| EP0047153A1 | Semiconductor memory device | Expired / Lapsed | 1981-08-28 | — | 7 | Details |
| JPS5812764A | Ink jet recording system | Expired / Lapsed | 1981-07-16 | — | 0 | Details |
| JPS583269A | Vertical type mos dynamic memory cell | Expired / Lapsed | 1981-06-30 | — | 0 | Details |
| JPS583260A | Vertical type buried capacitor | Expired / Lapsed | 1981-06-29 | — | 0 | Details |
| EP0037285A2 | A memory device, more particularly word line drive circuitr… | Expired / Lapsed | 1981-03-31 | — | 13 | Details |
| EP0032957A1 | Information processing system for error processing, and err… | Expired / Lapsed | 1980-07-29 | — | 4 | Details |
| EP0023146A2 | Method of manufacturing a semiconductor device wherein firs… | Expired / Lapsed | 1980-07-21 | — | 18 | Details |
| JPS5715455A | Semiconductor device | Expired / Lapsed | 1980-07-01 | — | 0 | Details |
| EP0021776A1 | Semiconductor memory device and method of making same | Expired / Lapsed | 1980-06-17 | — | 13 | Details |
| EP0020116A1 | Masterslice semiconductor device and method of producing it | Expired / Lapsed | 1980-05-23 | — | 8 | Details |
| JPS5644262A | Picture information reader | Expired / Lapsed | 1979-09-19 | — | 0 | Details |
| GB2032149A | Transferring from Working to Standby Processor on Fault | Expired / Lapsed | 1979-08-30 | — | 6 | Details |
| JPS5561060A | Semiconductor memory | Expired / Lapsed | 1978-10-31 | — | 0 | Details |
| JPS5513571A | Absent subscriber calling system | Expired / Lapsed | 1978-07-16 | — | 0 | Details |
| JPS54160104A | Normality confirming system for traffic control system | Expired / Lapsed | 1978-06-09 | — | 0 | Details |
| JPS5479729A | Map reference system | Expired / Lapsed | 1977-12-07 | — | 0 | Details |
| JPS5472065A | Dichroic mirror mechanism | Expired / Lapsed | 1977-11-21 | — | 0 | Details |
| JPS5384638A | Trouble supervisory system | Expired / Lapsed | 1976-12-30 | — | 0 | Details |
| JPS5341A | Order address collection controll system | Expired / Lapsed | 1976-06-24 | — | 0 | Details |
| DE2214563A1 | Time division multiple messaging system | Expired / Lapsed | 1972-03-24 | — | 0 | Details |
| GB1092691A | High precision closed loop servo system | Expired / Lapsed | 1964-12-14 | — | 0 | Details |
| US6877135B1 | Document display apparatus and method for displaying docume… | Expired / Lapsed | 1999-12-28 | 2005-04-05 | 28 | Details |
| US6798779B1 | Synchronous communications network transmission device havi… | Expired / Lapsed | 1999-03-02 | 2004-09-28 | 9 | Details |
| US6671508B1 | Communication control method, status notification method an… | Expired / Lapsed | 1999-12-30 | 2003-12-30 | 57 | Details |
| US6650343B1 | Electronic information displaying method, electronic inform… | Expired / Lapsed | 1999-09-28 | 2003-11-18 | 60 | Details |
| US6384845B1 | Display apparatus for interlocked movement of scroll button… | Expired / Lapsed | 1999-04-09 | 2002-05-07 | 26 | Details |
| US6272537B1 | Method for building element manager for a computer network … | Expired / Lapsed | 1997-11-17 | 2001-08-07 | 28 | Details |
| US6226670B1 | E-mail distribution system | Expired / Lapsed | 1998-06-15 | 2001-05-01 | 15 | Details |
| US6205478B1 | System for exchanging user information among users | Expired / Lapsed | 1998-12-30 | 2001-03-20 | 43 | Details |
| US6185022B1 | Optical transmission system and transmitting terminal stati… | Expired / Lapsed | 1998-02-23 | 2001-02-06 | 50 | Details |
| US6173339B1 | System for monitoring execution of commands from a host for… | Expired / Lapsed | 1998-09-17 | 2001-01-09 | 20 | Details |
| US6167142A | Object movement simulation apparatus | Expired / Lapsed | 1998-04-28 | 2000-12-26 | 14 | Details |
| US5894362A | Optical communication system which determines the spectrum … | Expired / Lapsed | 1996-08-19 | 1999-04-13 | 29 | Details |
| US5835911A | Software distribution and maintenance system and method | Expired / Lapsed | 1995-08-21 | 1998-11-10 | 111 | Details |
| US5790872A | Interrupt control handler for a RISC-type microprocessor | Expired / Lapsed | 1997-09-18 | 1998-08-04 | 19 | Details |
| US5784509A | Waveguide-optical fiber connection structure and waveguide-… | Expired / Lapsed | 1996-05-17 | 1998-07-21 | 18 | Details |
| US5777612A | Multimedia dynamic synchronization system | Expired / Lapsed | 1995-11-22 | 1998-07-07 | 6 | Details |
| USD394851S | "Data" icon for a display screen | Expired / Lapsed | 1997-05-27 | 1998-06-02 | 1 | Details |
| US5761391A | Arithmetic unit for calculating distance between objects | Expired / Lapsed | 1996-10-02 | 1998-06-02 | 12 | Details |
| USD393847S | "Data " icon for a display screen | Expired / Lapsed | 1997-05-27 | 1998-04-28 | 1 | Details |
| USD393846S | "Local area network" icon for a display screen | Expired / Lapsed | 1997-05-27 | 1998-04-28 | 1 | Details |
| USD393845S | "Cancel" icon for a display screen | Expired / Lapsed | 1997-05-27 | 1998-04-28 | 1 | Details |
| US5735816A | Spiral sheath retainer for autoperfusion dilatation cathete… | Expired / Lapsed | 1996-07-23 | 1998-04-07 | 12 | Details |
| USD392271S | "Communication between personal computers" icon for a displ… | Expired / Lapsed | 1997-05-27 | 1998-03-17 | 1 | Details |
| US5604848A | Viewpoint setting apparatus for a computer graphics system … | Expired / Lapsed | 1995-03-07 | 1997-02-18 | 7 | Details |
| US5594849A | Biomedical magnetism imaging apparatus and method | Expired / Lapsed | 1991-08-09 | 1997-01-14 | 5 | Details |
| US5513639A | Balloon type ultrasonic diagnostic probe | Expired / Lapsed | 1994-10-05 | 1996-05-07 | 13 | Details |
| US5479547A | Optical multiplexer and demultiplexer module including mult… | Expired / Lapsed | 1994-10-13 | 1995-12-26 | 15 | Details |
| US5404368A | Semiconductor optical apparatus having an improved precisio… | Expired / Lapsed | 1993-10-12 | 1995-04-04 | 13 | Details |
| US5402485A | Two-wire termination impedance generation circuit of subscr… | Expired / Lapsed | 1994-01-31 | 1995-03-28 | 16 | Details |
| US5373532A | π/4 quadrature phase shift keying modulator | Expired / Lapsed | 1992-09-11 | 1994-12-13 | 10 | Details |
| US5313950A | Ultrasonic probe | Expired / Lapsed | 1993-02-23 | 1994-05-24 | 14 | Details |
| USD345147S | Pen-based personal computer | Expired / Lapsed | 1992-07-22 | 1994-03-15 | 1 | Details |
| US5285385A | System for displaying an estimated current source | Expired / Lapsed | 1990-03-16 | 1994-02-08 | 24 | Details |
| US5115810A | Ultrasonic transducer array | Expired / Lapsed | 1990-10-30 | 1992-05-26 | 27 | Details |
| US5087969A | Unmanned vehicle control system with guide line detection | Expired / Lapsed | 1990-07-19 | 1992-02-11 | 17 | Details |
| US5049251A | Sputtering method for fabricating thin film | Expired / Lapsed | 1989-06-07 | 1991-09-17 | 8 | Details |
| USD317606S | Portable telephone | Expired / Lapsed | 1990-10-11 | 1991-06-18 | 1 | Details |
| US4954480A | Multi-layer superconducting circuit substrate and process f… | Expired / Lapsed | 1988-04-27 | 1990-09-04 | 5 | Details |
| US4873869A | Device for the scanning of objects by means of ultrasound e… | Expired / Lapsed | 1982-08-26 | 1989-10-17 | 25 | Details |
| US4841233A | Semiconductor integrated circuit adapted to carry out opera… | Expired / Lapsed | 1988-03-24 | 1989-06-20 | 8 | Details |
| US4800533A | Semiconductor nonvolatile memory device | Expired / Lapsed | 1987-04-29 | 1989-01-24 | 10 | Details |
| US4796233A | Bipolar-transistor type semiconductor memory device having … | Expired / Lapsed | 1985-10-17 | 1989-01-03 | 13 | Details |
| US4791610A | Semiconductor memory device formed of a SOI-type transistor… | Expired / Lapsed | 1986-05-23 | 1988-12-13 | 18 | Details |
| US4757474A | Semiconductor memory device having redundancy circuit porti… | Expired / Lapsed | 1987-01-21 | 1988-07-12 | 6 | Details |
| US4755938A | Access request control apparatus which reassigns higher pri… | Expired / Lapsed | 1986-10-20 | 1988-07-05 | 26 | Details |
| US4742530A | Radio relay method and its apparatus for digital communicat… | Expired / Lapsed | 1986-08-20 | 1988-05-03 | 13 | Details |
| US4720818A | Semiconductor memory device adapted to carry out operation … | Expired / Lapsed | 1986-06-17 | 1988-01-19 | 22 | Details |
| US4704658A | Evaporation cooling module for semiconductor devices | Expired / Lapsed | 1986-04-30 | 1987-11-03 | 28 | Details |
| US4665532A | Radio communication system | Expired / Lapsed | 1985-01-22 | 1987-05-12 | 10 | Details |
| US4646118A | Semiconductor memory device | Expired / Lapsed | 1984-12-13 | 1987-02-24 | 20 | Details |
| US4630238A | Semiconductor memory device | Expired / Lapsed | 1984-10-09 | 1986-12-16 | 29 | Details |
| US4614881A | Integrated semiconductor circuit device for generating a sw… | Expired / Lapsed | 1984-01-27 | 1986-09-30 | 8 | Details |
| US4610255A | Ultrasonic non-linear parameter measuring system | Expired / Lapsed | 1984-11-28 | 1986-09-09 | 17 | Details |
| US4598284A | System for changing common card mode data in a card image d… | Expired / Lapsed | 1983-10-11 | 1986-07-01 | 3 | Details |
| US4592025A | Information storing circuit using blown and unblown fuses | Expired / Lapsed | 1984-04-10 | 1986-05-27 | 20 | Details |
| US4589064A | System for controlling key storage unit which controls acce… | Expired / Lapsed | 1983-02-25 | 1986-05-13 | 11 | Details |
| USD283707S | Mobile telephone set | Expired / Lapsed | 1984-01-31 | 1986-05-06 | 1 | Details |
| US4580451A | Ultrasonic sector-scan probe | Expired / Lapsed | 1985-05-17 | 1986-04-08 | 3 | Details |
| US4581720A | Semiconductor memory device | Expired / Lapsed | 1983-09-26 | 1986-04-08 | 25 | Details |
| US4574203A | Clock generating circuit providing a boosted clock signal | Expired / Lapsed | 1983-06-09 | 1986-03-04 | 12 | Details |
| US4570488A | Ultrasonic sector-scan probe | Expired / Lapsed | 1984-06-07 | 1986-02-18 | 13 | Details |
| US4562437A | Digital loop filter | Expired / Lapsed | 1982-12-27 | 1985-12-31 | 12 | Details |
| US4559596A | History memory control system | Expired / Lapsed | 1983-06-30 | 1985-12-17 | 4 | Details |
| US4553225A | Method of testing IC memories | Expired / Lapsed | 1982-09-27 | 1985-11-12 | 7 | Details |
| US4547260A | Process for fabricating a wiring layer of aluminum or alumi… | Expired / Lapsed | 1984-04-10 | 1985-10-15 | 26 | Details |
| US4545250A | Measuring apparatus utilizing spectrum profile | Expired / Lapsed | 1984-03-19 | 1985-10-08 | 15 | Details |
| US4546457A | Semiconductor memory device | Expired / Lapsed | 1982-11-05 | 1985-10-08 | 10 | Details |
| US4543647A | Electrically programmable non-volatile semiconductor memory… | Expired / Lapsed | 1981-12-23 | 1985-09-24 | 15 | Details |
| US4539661A | Static-type semiconductor memory device | Expired / Lapsed | 1983-06-28 | 1985-09-03 | 8 | Details |
| US4499484A | Integrated circuit manufactured by master slice method | Expired / Lapsed | 1982-09-08 | 1985-02-12 | 8 | Details |
| US4488242A | Robot arm control method using open loop control in combina… | Expired / Lapsed | 1981-12-21 | 1984-12-11 | 11 | Details |
| US4482984A | Static type semiconductor memory device | Expired / Lapsed | 1981-10-07 | 1984-11-13 | 17 | Details |
| US4468616A | Testing equipment for electric components | Expired / Lapsed | 1981-08-26 | 1984-08-28 | 5 | Details |
| US4468749A | Adjustable attenuator circuit | Expired / Lapsed | 1981-08-12 | 1984-08-28 | 12 | Details |
| US4460916A | Ceramic substrate with integrated circuit bonded thereon | Expired / Lapsed | 1982-10-21 | 1984-07-17 | 2 | Details |
| US4459853A | Ultrasonic measuring system | Expired / Lapsed | 1982-03-31 | 1984-07-17 | 18 | Details |
| US4450579A | Recognition method and apparatus | Expired / Lapsed | 1981-06-10 | 1984-05-22 | 28 | Details |
| US4432006A | Semiconductor memory device | Expired / Lapsed | 1980-08-29 | 1984-02-14 | 9 | Details |
| US4428068A | IC with built-in electrical quality control flag | Expired / Lapsed | 1981-11-12 | 1984-01-24 | 14 | Details |
| US4412240A | Semiconductor integrated circuit and wiring method | Expired / Lapsed | 1980-02-22 | 1983-10-25 | 15 | Details |
| US4412237A | Semiconductor device | Expired / Lapsed | 1978-12-11 | 1983-10-25 | 18 | Details |
| US4402066A | Semiconductor memory circuit | Expired / Lapsed | 1981-02-17 | 1983-08-30 | 12 | Details |
| US4396845A | Address buffer circuit | Expired / Lapsed | 1981-03-16 | 1983-08-02 | 9 | Details |
| USD269441S | Electronic cash register | Expired / Lapsed | 1981-02-25 | 1983-06-21 | 1 | Details |
| US4377759A | Offset compensating circuit | Expired / Lapsed | 1980-04-23 | 1983-03-22 | 36 | Details |
| US4375993A | Method of producing a semiconductor device by simultaneous … | Expired / Lapsed | 1981-04-08 | 1983-03-08 | 25 | Details |
| US4355375A | Semiconductor memory device | Expired / Lapsed | 1981-07-27 | 1982-10-19 | 7 | Details |
| US4342103A | Address buffer circuit | Expired / Lapsed | 1980-07-23 | 1982-07-27 | 19 | Details |
| US4329704A | MOS Random access memory with buried storage capacitor | Expired / Lapsed | 1979-09-19 | 1982-05-11 | 8 | Details |
| US4316204A | Optoelectronic semiconductor device | Expired / Lapsed | 1980-02-06 | 1982-02-16 | 7 | Details |
| US4292091A | Method of producing semiconductor devices by selective lase… | Expired / Lapsed | 1980-02-25 | 1981-09-29 | 24 | Details |
| US4278897A | Large scale semiconductor integrated circuit device | Expired / Lapsed | 1978-12-28 | 1981-07-14 | 11 | Details |
| US4272819A | Inter-subsystem direct transfer system | Expired / Lapsed | 1979-03-26 | 1981-06-09 | 13 | Details |
| US4251828A | Semiconductor device and process for producing the same | Expired / Lapsed | 1978-06-05 | 1981-02-17 | 21 | Details |
| US4233091A | Method of manufacturing semiconductor devices having improv… | Expired / Lapsed | 1979-08-31 | 1980-11-11 | 5 | Details |
| US4210946A | Magnetic recording medium | Expired / Lapsed | 1978-09-19 | 1980-07-01 | 17 | Details |
| US4189206A | Optical switching device | Expired / Lapsed | 1978-03-13 | 1980-02-19 | 14 | Details |
| US4181937A | Data processing system having an intermediate buffer memory | Expired / Lapsed | 1977-10-28 | 1980-01-01 | 7 | Details |
| US4158241A | Semiconductor memory device with a plurality of memory cell… | Expired / Lapsed | 1978-06-15 | 1979-06-12 | 11 | Details |
| US4153906A | Integrated circuit using an insulated gate field effect tra… | Expired / Lapsed | 1977-11-22 | 1979-05-08 | 12 | Details |
| US4145738A | Plural virtual address space processing system | Expired / Lapsed | 1977-05-31 | 1979-03-20 | 10 | Details |
| US4141001A | Monitor display control method and apparatus for data input… | Expired / Lapsed | 1977-02-17 | 1979-02-20 | 13 | Details |
| US4138626A | Gas discharge display apparatus | Expired / Lapsed | 1976-05-26 | 1979-02-06 | 6 | Details |
| US4115851A | Memory access control system | Expired / Lapsed | 1977-04-06 | 1978-09-19 | 16 | Details |
| US4091293A | Majority decision logic circuit | Expired / Lapsed | 1976-12-15 | 1978-05-23 | 15 | Details |
| US4074232A | Data sending and receiving system for packet switching netw… | Expired / Lapsed | 1976-03-02 | 1978-02-14 | 4 | Details |
| US4061998A | Character recognition equipment | Expired / Lapsed | 1976-07-20 | 1977-12-06 | 6 | Details |
| US4027295A | Magnetic bubble device | Expired / Lapsed | 1974-11-29 | 1977-05-31 | 4 | Details |
| US3995111A | Transmit phase control system of synchronization burst for … | Expired / Lapsed | 1975-02-21 | 1976-11-30 | 7 | Details |
| US3976993A | Gas discharge panel self shift drive system and method of d… | Expired / Lapsed | 1974-07-12 | 1976-08-24 | 11 | Details |
| US3959726A | Pilot signal transmission system | Expired / Lapsed | 1972-09-18 | 1976-05-25 | 19 | Details |
| US3917987A | Voice coil motor control system | Expired / Lapsed | 1974-12-23 | 1975-11-04 | 4 | Details |
| US3909693A | System for driving a pulse motor | Expired / Lapsed | 1973-11-09 | 1975-09-30 | 6 | Details |
| US3906262A | Two-axis magnetic positioning device | Expired / Lapsed | 1974-07-22 | 1975-09-16 | 6 | Details |
| US3900876A | Automatic omega signal pattern synchronizing system | Expired / Lapsed | 1973-07-11 | 1975-08-19 | 7 | Details |
| US3887763A | Video signal transmission system | Expired / Lapsed | 1973-07-17 | 1975-06-03 | 20 | Details |
| US3878430A | Self shift display panel driving system | Expired / Lapsed | 1973-06-19 | 1975-04-15 | 13 | Details |
| US3832693A | System for reading out the coordinates of information displ… | Expired / Lapsed | 1972-08-21 | 1974-08-27 | 6 | Details |
| US3766458A | System for driving a self-excited pulse motor in accordance… | Expired / Lapsed | 1971-12-23 | 1973-10-16 | 4 | Details |
| US3760364A | Electronic switching system | Expired / Lapsed | 1971-11-04 | 1973-09-18 | 5 | Details |
| US3726733A | Method of manufacturing thin-film integrated circuits | Expired / Lapsed | 1971-02-03 | 1973-04-10 | 0 | Details |
| US3710349A | Data transferring circuit arrangement for transferring data… | Expired / Lapsed | 1971-05-05 | 1973-01-09 | 2 | Details |
| US3706077A | Multiprocessor type information processing system with cont… | Expired / Lapsed | 1971-01-06 | 1972-12-12 | 0 | Details |
| FR2121040A5 | FR2121040A5 - - Google Patents | Expired / Lapsed | 1971-12-28 | 1972-08-18 | 0 | Details |
| US3678498A | Video display system including raster type cathode ray tube | Expired / Lapsed | 1970-10-19 | 1972-07-18 | 4 | Details |
| US3665486A | Electrostatic recording apparatus for high speed operation | Expired / Lapsed | 1969-08-27 | 1972-05-23 | 3 | Details |
| FR2078296A5 | FR2078296A5 - - Google Patents | Expired / Lapsed | 1971-02-05 | 1971-11-05 | 0 | Details |
| US3581010A | Frame synchronization system for synchronizing the frame of… | Expired / Lapsed | 1967-11-14 | 1971-05-25 | 8 | Details |
| US3579279A | Step motor acceleration-deceleration control system | Expired / Lapsed | 1969-05-15 | 1971-05-18 | 8 | Details |
| US3531775A | Memory apparatus for rapid write-in and read-out of informa… | Expired / Lapsed | 1967-09-27 | 1970-09-29 | 0 | Details |
| US3505632A | Indirectly heated thermistor | Expired / Lapsed | 1967-12-06 | 1970-04-07 | 0 | Details |
| US3482048A | Communication system for transmission of high speed code vi… | Expired / Lapsed | 1966-02-25 | 1969-12-02 | 0 | Details |
| US3477929A | Method of etching aluminum foil in the manufacturing of alu… | Expired / Lapsed | 1967-04-14 | 1969-11-11 | 0 | Details |
| US3445811A | Error system for logic circuits | Expired / Lapsed | 1965-08-09 | 1969-05-20 | 0 | Details |
| US3437854A | Electric rotary step motor with plural offset stator windin… | Expired / Lapsed | 1966-11-04 | 1969-04-08 | 2 | Details |
| US3427591A | System for compensating time delay or skew between equidigi… | Expired / Lapsed | 1966-03-18 | 1969-02-11 | 2 | Details |
| US3416056A | Programmed digital motor control for a machine tool using a… | Expired / Lapsed | 1967-08-18 | 1968-12-10 | 0 | Details |
| US3416053A | Switching circuit for a plurality of motors having locking … | Expired / Lapsed | 1966-03-18 | 1968-12-10 | 0 | Details |
| US3403355A | Phase control circuit | Expired / Lapsed | 1966-01-12 | 1968-09-24 | 2 | Details |
| US3374400A | Compound electronic unit | Expired / Lapsed | 1965-09-01 | 1968-03-19 | 0 | Details |
| US3372321A | Digital system for controlling the position along a given p… | Expired / Lapsed | 1967-06-22 | 1968-03-05 | 0 | Details |
| US3323030A | Digital fine and coarse servo motor control system | Expired / Lapsed | 1963-12-23 | 1967-05-30 | 2 | Details |
| US3310284A | Hydraulic system rotary pilot valve | Expired / Lapsed | 1964-08-20 | 1967-03-21 | 2 | Details |
| US3307170A | Multi-face indicator system | Expired / Lapsed | 1963-02-27 | 1967-02-28 | 2 | Details |
| US3283063A | Automatic equalizer system | Expired / Lapsed | 1963-04-10 | 1966-11-01 | 2 | Details |
| US3261986A | Digital code regenerative relay transmission system | Expired / Lapsed | 1963-04-19 | 1966-07-19 | 2 | Details |
| US3236951A | Channel changing equipment for timedivision multiplex commu… | Expired / Lapsed | 1961-05-08 | 1966-02-22 | 2 | Details |
| US3226577A | Pulse separation spacing control circuit | Expired / Lapsed | 1964-12-24 | 1965-12-28 | 2 | Details |
| US3204136A | Two-phase stepping motor | Expired / Lapsed | 1961-06-02 | 1965-08-31 | 2 | Details |