NEC Corp
NEC CorpActive Patents
0
Total Holdings
440
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| EP1418498A2 | Multi-window display device, multi-window managing method, … | Expired / Lapsed | 2003-11-05 | — | 10 | Details |
| US20030206202A1 | Information processing apparatus | Expired / Lapsed | 2003-05-01 | — | 7 | Details |
| EP1195979A2 | Control of synchronous display of melody information and di… | Expired / Lapsed | 2001-10-04 | — | 6 | Details |
| EP1061763A2 | A pipelined packet scheduler for high speed optical switches | Expired / Lapsed | 2000-02-29 | — | 17 | Details |
| EP1063827A2 | Method for address lookup | Expired / Lapsed | 2000-02-09 | — | 15 | Details |
| EP1049352A2 | Shakeup technique to improve scheduling techniques for inpu… | Expired / Lapsed | 1999-11-17 | — | 15 | Details |
| EP0944093A1 | Contents addressable memory circuit for retrieval operation… | Expired / Lapsed | 1999-03-11 | — | 16 | Details |
| EP0929197A2 | Broadcast-program viewing method and system | Expired / Lapsed | 1999-01-08 | — | 16 | Details |
| EP0920153A2 | Ring network for sharing protection resource by working com… | Expired / Lapsed | 1998-11-30 | — | 27 | Details |
| US20010055968A1 | Mobile station and a method of reducing interference among … | Expired / Lapsed | 1998-05-29 | — | 30 | Details |
| EP0880296A1 | Transmission restricting device, radio communication termin… | Expired / Lapsed | 1998-05-20 | — | 10 | Details |
| EP0841824A2 | Failure restoration system suitable for a large-scale netwo… | Expired / Lapsed | 1997-11-10 | — | 10 | Details |
| JPH1127741A | Mobile communication system | Expired / Lapsed | 1997-06-30 | — | 0 | Details |
| EP0798675A2 | Non-contact communications system | Expired / Lapsed | 1997-04-01 | — | 20 | Details |
| EP0793395A2 | Radio telephone apparatus | Expired / Lapsed | 1997-02-26 | — | 13 | Details |
| EP0784271A2 | Operation right interlinking method and cooperative working… | Expired / Lapsed | 1997-01-10 | — | 5 | Details |
| EP0780906A2 | High electron mobility transistor comprising an InAs/InGaAs… | Expired / Lapsed | 1996-12-19 | — | 22 | Details |
| EP0772325A2 | ATM exchange system and priority control method | Expired / Lapsed | 1996-10-30 | — | 23 | Details |
| EP0755127A2 | CDMA diversity transmission system | Expired / Lapsed | 1996-07-16 | — | 14 | Details |
| JPH1020021A | Laser distance measuring device | Expired / Lapsed | 1996-07-04 | — | 0 | Details |
| EP0751642A2 | VT path misconnection avoidance method in the event of SONE… | Expired / Lapsed | 1996-06-28 | — | 5 | Details |
| JPH1011991A | Semiconductor storage device | Expired / Lapsed | 1996-06-28 | — | 0 | Details |
| JPH1011177A | Remote power control system | Expired / Lapsed | 1996-06-20 | — | 0 | Details |
| EP0755164A2 | Multiservices MAC-protocol for wireless ATM system | Expired / Lapsed | 1996-06-19 | — | 8 | Details |
| EP0755164A3 | Multiservices MAC-protocol for wireless ATM system | Expired / Lapsed | 1996-06-19 | — | 0 | Details |
| EP0744876A2 | A method of signal transmission in a mobile communication s… | Expired / Lapsed | 1996-05-24 | — | 2 | Details |
| EP0743800A2 | Paging system capable of calling pagers of different bit ra… | Expired / Lapsed | 1996-05-17 | — | 10 | Details |
| EP0729234A1 | Adaptive A/D converting device | Expired / Lapsed | 1996-02-26 | — | 24 | Details |
| EP0723257A2 | Voice signal transmission system using spectral parameter a… | Expired / Lapsed | 1996-01-17 | — | 5 | Details |
| EP0721275A2 | OAM controll system in an optical network | Expired / Lapsed | 1995-12-28 | — | 12 | Details |
| EP0715250A2 | Method of processing input/output request in computer syste… | Expired / Lapsed | 1995-11-29 | — | 19 | Details |
| EP0712219A2 | Variable transmission bit rate discrimination method and ap… | Expired / Lapsed | 1995-11-10 | — | 2 | Details |
| JPH0970071A | Digital mobile data communication system | Expired / Lapsed | 1995-08-31 | — | 0 | Details |
| EP0687076A2 | Diversity communication system with arrays of antennas usin… | Expired / Lapsed | 1995-06-06 | — | 8 | Details |
| EP0689313A2 | AFC for OFDM using windowing | Expired / Lapsed | 1995-05-26 | — | 14 | Details |
| EP0684591A1 | Radio selective calling receiver and calling sound control … | Expired / Lapsed | 1995-05-19 | — | 18 | Details |
| EP0680177A2 | Access method and a relay station and terminals thereof | Expired / Lapsed | 1995-04-18 | — | 31 | Details |
| EP0682281A1 | Mobile telephone equipment with head-up display | Expired / Lapsed | 1995-04-03 | — | 7 | Details |
| EP0661851A2 | Congestion control method in ATM network | Expired / Lapsed | 1994-12-21 | — | 14 | Details |
| EP0638863A1 | Distributed data processing system having uniform load dist… | Expired / Lapsed | 1994-08-10 | — | 8 | Details |
| EP0620694A2 | Optical cross-connect system with space and wavelength divi… | Expired / Lapsed | 1994-04-18 | — | 17 | Details |
| EP0620694A3 | Optical cross-connect system with space and wavelength divi… | Expired / Lapsed | 1994-04-18 | — | 0 | Details |
| EP0619685A2 | Timepiece for radio display pager synchronised to the local… | Expired / Lapsed | 1994-03-29 | — | 9 | Details |
| EP0604956A2 | Decision feedback equalizer with adaptive filter array oper… | Expired / Lapsed | 1993-12-27 | — | 9 | Details |
| EP0603916A2 | Packet switching system using idle/busy status of output bu… | Expired / Lapsed | 1993-12-27 | — | 8 | Details |
| EP0603915A2 | Signalling method and system for packet network | Expired / Lapsed | 1993-12-24 | — | 6 | Details |
| JPH0743565A | Coupling structure of optical semiconductor device and opti… | Expired / Lapsed | 1993-07-27 | — | 0 | Details |
| EP0574006A1 | IC card storing language identification for guidance messag… | Expired / Lapsed | 1993-06-11 | — | 7 | Details |
| EP0567135A1 | Telephone answering apparatus having a plurality of selecta… | Expired / Lapsed | 1993-04-22 | — | 7 | Details |
| EP0548939A2 | Transmission power control system capable of keeping signal… | Expired / Lapsed | 1992-12-23 | — | 8 | Details |
| EP0544315A2 | Maximum likelihood sequence estimation apparatus | Expired / Lapsed | 1992-11-26 | — | 10 | Details |
| EP0520494A2 | System for transmitting data using wavelength division mult… | Expired / Lapsed | 1992-06-26 | — | 8 | Details |
| EP0520445A1 | Heater coil for electron tube | Expired / Lapsed | 1992-06-25 | — | 7 | Details |
| JPH064294A | Program down load system | Expired / Lapsed | 1992-06-23 | — | 0 | Details |
| JPH064435A | Terminal control system | Expired / Lapsed | 1992-06-17 | — | 0 | Details |
| EP0518274A1 | Hands free phone set | Expired / Lapsed | 1992-06-10 | — | 19 | Details |
| EP0513841A2 | Dynamic channel assignment cordless telecommunication netwo… | Expired / Lapsed | 1992-05-18 | — | 16 | Details |
| EP0509548A2 | Digital cellular switching system with means for securing u… | Expired / Lapsed | 1992-04-21 | — | 8 | Details |
| EP0482943A2 | Bidirectional optical transmission method and apparatus the… | Expired / Lapsed | 1991-10-25 | — | 5 | Details |
| EP0452970A2 | Antenna beam pointing method for satellite mobile communica… | Expired / Lapsed | 1991-04-19 | — | 3 | Details |
| EP0449327A2 | Noise-immune space diversity receiver | Expired / Lapsed | 1991-03-29 | — | 14 | Details |
| EP0444592A2 | Multidirection multiplex communication system | Expired / Lapsed | 1991-02-26 | — | 3 | Details |
| EP0443516A2 | Transmission and reception of pager signals without useless… | Expired / Lapsed | 1991-02-19 | — | 14 | Details |
| EP0404173A2 | Multiple access satellite communication system for mini-ear… | Expired / Lapsed | 1990-06-22 | — | 3 | Details |
| EP0403247A2 | AGC device for producing a gain controlled and d.c. offset … | Expired / Lapsed | 1990-06-13 | — | 4 | Details |
| JPH0444440A | Call setting reception control system | Expired / Lapsed | 1990-06-12 | — | 0 | Details |
| EP0395092A2 | Mobile telephone system | Expired / Lapsed | 1990-04-27 | — | 9 | Details |
| EP0388951A2 | Call control with transmission priority in a packet communi… | Expired / Lapsed | 1990-03-22 | — | 21 | Details |
| EP0371459A2 | Semiconductor memory device provided with an improved commo… | Expired / Lapsed | 1989-11-28 | — | 8 | Details |
| EP0361350A2 | Mobile telephone station with power saving circuit | Expired / Lapsed | 1989-09-25 | — | 5 | Details |
| EP0353779A2 | Preamble detection circuit for digital communications system | Expired / Lapsed | 1989-08-04 | — | 12 | Details |
| EP0344988A2 | Connection terminal structure of electronic equipment | Expired / Lapsed | 1989-05-26 | — | 12 | Details |
| EP0329159A2 | Congestion control method and apparatus for end-to-end pack… | Expired / Lapsed | 1989-02-17 | — | 19 | Details |
| EP0328100A2 | High throughput communication method and system for a digit… | Expired / Lapsed | 1989-02-09 | — | 16 | Details |
| EP0327101A2 | Satellite communication system with variable coding rate | Expired / Lapsed | 1989-02-03 | — | 6 | Details |
| FR2624994A1 | INTERMEDIATE TRANSLATION REGISTER CONTROL SYSTEM | Expired / Lapsed | 1988-12-19 | — | 0 | Details |
| JPH0267752A | Semiconductor device | Expired / Lapsed | 1988-09-01 | — | 0 | Details |
| JPH0237443A | Main storage management system for electronic computer syst… | Expired / Lapsed | 1988-07-27 | — | 0 | Details |
| EP0281150A2 | A paging system | Expired / Lapsed | 1988-03-04 | — | 5 | Details |
| EP0280543A2 | Paging system | Expired / Lapsed | 1988-02-25 | — | 4 | Details |
| EP0275165A2 | Selective calling radio display pager | Expired / Lapsed | 1988-01-11 | — | 7 | Details |
| EP0267612A2 | Timer/counter using a register block | Expired / Lapsed | 1987-11-12 | — | 12 | Details |
| EP0258715A2 | Static random access memory having bi-cmos construction | Expired / Lapsed | 1987-08-14 | — | 10 | Details |
| EP0255048A2 | Portable radio telephone having power saver | Expired / Lapsed | 1987-07-23 | — | 17 | Details |
| JPS644055A | Construction of semiconductor integrated circuit | Expired / Lapsed | 1987-06-25 | — | 0 | Details |
| JPS641363A | Facsimile equipment | Expired / Lapsed | 1987-06-23 | — | 0 | Details |
| EP0251007A2 | Paging receiver having a noise-immune verification circuit … | Expired / Lapsed | 1987-06-15 | — | 12 | Details |
| EP0245024A2 | Radio communication system with power saving disablement pr… | Expired / Lapsed | 1987-04-29 | — | 16 | Details |
| EP0243899A2 | Battery-saving method for a cordless telephone system | Expired / Lapsed | 1987-04-24 | — | 15 | Details |
| WO1987007444A1 | Shielded electrical connector | Expired / Lapsed | 1987-04-06 | — | 0 | Details |
| EP0225643A2 | Channel switching system | Expired / Lapsed | 1986-12-10 | — | 5 | Details |
| EP0212667A2 | Communication system with variably repeated transmission of… | Expired / Lapsed | 1986-08-27 | — | 11 | Details |
| JPS6315347A | Information preserving system | Expired / Lapsed | 1986-07-04 | — | 0 | Details |
| EP0193316A1 | Mobile telephone system for automatically paging absent mob… | Expired / Lapsed | 1986-02-14 | — | 7 | Details |
| EP0182601A1 | Multi-direction time division multiplex communication appar… | Expired / Lapsed | 1985-11-13 | — | 2 | Details |
| EP0179465A2 | Channel quality monitoring apparatus | Expired / Lapsed | 1985-10-23 | — | 7 | Details |
| JPS6253545A | Facsimile store and forward exchange | Expired / Lapsed | 1985-09-02 | — | 0 | Details |
| EP0381249A2 | Data processing apparatus having an input/output controller… | Expired / Lapsed | 1985-06-25 | — | 3 | Details |
| EP0152908A2 | Automatic call transfer system capable of carrying out call… | Expired / Lapsed | 1985-02-13 | — | 7 | Details |
| EP0147808A2 | Optical switch | Expired / Lapsed | 1984-12-20 | — | 4 | Details |
| EP0142820A2 | Method of controlling multiprocessing system and hardware a… | Expired / Lapsed | 1984-11-14 | — | 4 | Details |
| JPS61102081A | Frequency stabilization of semiconductor laser | Expired / Lapsed | 1984-10-25 | — | 0 | Details |
| EP0138598A2 | Error correction apparatus using a viterbi decoder | Expired / Lapsed | 1984-10-12 | — | 10 | Details |
| JPS6174149A | Optical recording medium | Expired / Lapsed | 1984-09-20 | — | 0 | Details |
| EP0136834A2 | A digital circuit performing an arithmetic operation with a… | Expired / Lapsed | 1984-09-03 | — | 7 | Details |
| EP0135783A2 | Radio communication apparatus disabled on reception of a pr… | Expired / Lapsed | 1984-08-17 | — | 12 | Details |
| EP0135065A1 | Star sensor using CCD | Expired / Lapsed | 1984-07-25 | — | 16 | Details |
| EP0115348A2 | Remote initialization of interconnected communications stat… | Expired / Lapsed | 1984-01-27 | — | 6 | Details |
| JPS6041827A | Radio selective call receiver | Expired / Lapsed | 1983-08-18 | — | 0 | Details |
| EP0097351A2 | Router unit and routing network for determining an output p… | Expired / Lapsed | 1983-06-20 | — | 7 | Details |
| EP0085437A2 | Monitor for transmission line | Expired / Lapsed | 1983-02-03 | — | 1 | Details |
| EP0085940A2 | Service channel signal transmission system | Expired / Lapsed | 1983-02-02 | — | 5 | Details |
| JPS59122140A | Optical heterodyne detector | Expired / Lapsed | 1982-12-28 | — | 0 | Details |
| JPS594138A | Master slice integrated circuit device | Expired / Lapsed | 1982-06-30 | — | 0 | Details |
| JPS59985A | Drive circuit for semiconductor laser | Expired / Lapsed | 1982-06-25 | — | 0 | Details |
| JPS5895451A | Data signal receiving device | Expired / Lapsed | 1981-12-01 | — | 0 | Details |
| JPS587847A | semiconductor equipment | Expired / Lapsed | 1981-07-07 | — | 0 | Details |
| JPS57147291A | Light transmission circuit | Expired / Lapsed | 1981-03-06 | — | 0 | Details |
| JPS5764708A | Optical filter | Expired / Lapsed | 1980-10-08 | — | 0 | Details |
| JPS571253A | Integrated circuit | Expired / Lapsed | 1980-08-04 | — | 0 | Details |
| JPS56148792A | Testing method for margin voltage of memory cell | Expired / Lapsed | 1980-04-21 | — | 0 | Details |
| JPS5663635A | Electronic pen | Expired / Lapsed | 1979-10-30 | — | 0 | Details |
| JPS5616104A | Diffraction grating type optical branching filter | Expired / Lapsed | 1979-09-19 | — | 0 | Details |
| JPS565501A | Beam converting element and its manufacture | Expired / Lapsed | 1979-06-27 | — | 0 | Details |
| DE2914945A1 | ELECTRONIC FORK GEAR | Expired / Lapsed | 1979-04-12 | — | 0 | Details |
| JPS5577248A | Abnormality detection system for moving body | Expired / Lapsed | 1978-12-06 | — | 0 | Details |
| JPS559521A | Scanning analog exposure method | Expired / Lapsed | 1978-07-04 | — | 0 | Details |
| JPS5463646A | Shared input/output device | Expired / Lapsed | 1977-10-29 | — | 0 | Details |
| DE2731442A1 | MEMORY CIRCUIT WITH INSULATING LAYER FIELD EFFECT TRANSISTO… | Expired / Lapsed | 1977-07-12 | — | 0 | Details |
| JPS548925A | Input unit | Expired / Lapsed | 1977-06-22 | — | 0 | Details |
| JPS5393795A | Collsion preventing devie using microwaves | Expired / Lapsed | 1977-01-27 | — | 0 | Details |
| DE2524845A1 | LIGHT GUIDE COUPLING FOR COUPLING TWO LIGHT GUIDES | Expired / Lapsed | 1975-06-04 | — | 0 | Details |
| GB1253302A | Electrical character recognition systems | Expired / Lapsed | 1969-03-10 | — | 0 | Details |
| GB999858A | An endo-radio-sonde | Expired / Lapsed | 1962-08-07 | — | 0 | Details |
| US7099625B1 | Automobile communications method and system | Expired / Lapsed | 1999-07-07 | 2006-08-29 | 60 | Details |
| US7058845B2 | Communication connection bypass method capable of minimizin… | Expired / Lapsed | 2002-07-12 | 2006-06-06 | 36 | Details |
| US7019674B2 | Content-based information retrieval architecture | Expired / Lapsed | 2004-08-02 | 2006-03-28 | 47 | Details |
| US6957388B1 | Scenario editing device capable of automatically supplement… | Expired / Lapsed | 2000-03-07 | 2005-10-18 | 21 | Details |
| US6829388B1 | System of detecting road white line, method for detecting r… | Expired / Lapsed | 2000-09-05 | 2004-12-07 | 27 | Details |
| US6771907B1 | Optical ring system | Expired / Lapsed | 2000-05-24 | 2004-08-03 | 16 | Details |
| US6768739B1 | Router with a cache having a high hit probability | Expired / Lapsed | 2000-02-09 | 2004-07-27 | 49 | Details |
| US6741268B1 | Page information display method and apparatus, and storage … | Expired / Lapsed | 2000-07-26 | 2004-05-25 | 63 | Details |
| US6704290B1 | Transmission device and transmission method | Expired / Lapsed | 2000-03-27 | 2004-03-09 | 13 | Details |
| US6654725B1 | System and method for providing customized advertising on t… | Expired / Lapsed | 1999-11-09 | 2003-11-25 | 22 | Details |
| US6633303B2 | Method, system and record medium for generating wide-area h… | Expired / Lapsed | 2001-05-07 | 2003-10-14 | 33 | Details |
| US6618379B1 | RRGS-round-robin greedy scheduling for input/output terabit… | Expired / Lapsed | 1998-12-08 | 2003-09-09 | 14 | Details |
| US6580821B1 | Method for computing the location and orientation of an obj… | Expired / Lapsed | 2000-03-30 | 2003-06-17 | 27 | Details |
| US6580698B1 | Path setting method in a mobile packet communication system | Expired / Lapsed | 1999-08-25 | 2003-06-17 | 6 | Details |
| US6557112B1 | QOS protection system | Expired / Lapsed | 1999-12-06 | 2003-04-29 | 16 | Details |
| US6553015B1 | High speed switching of communications links without interr… | Expired / Lapsed | 1999-05-20 | 2003-04-22 | 26 | Details |
| US6549896B1 | System and method employing random walks for mining web pag… | Expired / Lapsed | 2000-11-09 | 2003-04-15 | 46 | Details |
| US6549642B1 | Method and system for detecting road area | Expired / Lapsed | 1999-04-30 | 2003-04-15 | 17 | Details |
| US6477149B1 | Network system and method of controlling multicast group pa… | Expired / Lapsed | 1999-01-27 | 2002-11-05 | 13 | Details |
| US6473842B1 | Virtual memory managing system for managing swap-outs by pa… | Expired / Lapsed | 2000-01-04 | 2002-10-29 | 11 | Details |
| US6442131B1 | Selective VP protection method in ATM network | Expired / Lapsed | 1998-06-01 | 2002-08-27 | 10 | Details |
| US6434525B1 | Human image dialogue device and a recording medium storing … | Expired / Lapsed | 1999-05-26 | 2002-08-13 | 16 | Details |
| US6421319B1 | Network traffic monitoring system | Expired / Lapsed | 1998-10-29 | 2002-07-16 | 9 | Details |
| US6418557B1 | On-demand system enabling control of power-on/off of on-dem… | Expired / Lapsed | 1999-02-08 | 2002-07-09 | 12 | Details |
| US6408420B1 | Viterbi decoding method and apparatus thereof | Expired / Lapsed | 1999-07-14 | 2002-06-18 | 11 | Details |
| US6403948B1 | Photo-detecting module having a fiber optic groove on rear … | Expired / Lapsed | 1999-12-28 | 2002-06-11 | 9 | Details |
| US6396845B1 | Hierarchically interconnected routers for exclusively polli… | Expired / Lapsed | 1998-04-27 | 2002-05-28 | 20 | Details |
| US6385201B1 | Topology aggregation using parameter obtained by internodal… | Expired / Lapsed | 1998-04-29 | 2002-05-07 | 48 | Details |
| US6380921B2 | Information terminal device with display-illuminating means | Expired / Lapsed | 1999-03-30 | 2002-04-30 | 10 | Details |
| US6381447B1 | Foldable mobile telephone | Expired / Lapsed | 1998-12-08 | 2002-04-30 | 22 | Details |
| US6381641B1 | Network traffic management system | Expired / Lapsed | 1998-11-25 | 2002-04-30 | 52 | Details |
| US6363072B1 | ATM network communication control system allowing end-to-en… | Expired / Lapsed | 1998-08-13 | 2002-03-26 | 14 | Details |
| US6334140B1 | Electronic mail server in which electronic mail is processed | Expired / Lapsed | 1998-09-11 | 2001-12-25 | 24 | Details |
| US6330239B1 | Exchange apparatus for exchanging data between an asynchron… | Expired / Lapsed | 1998-07-15 | 2001-12-11 | 23 | Details |
| US6327610B2 | System for broadcasting electronic mails that separately st… | Expired / Lapsed | 1998-06-24 | 2001-12-04 | 16 | Details |
| US6320710B1 | Tape reproduction apparatus and method | Expired / Lapsed | 1999-09-07 | 2001-11-20 | 18 | Details |
| US6317740B1 | Method and apparatus for assigning keywords to media objects | Expired / Lapsed | 1998-12-16 | 2001-11-13 | 56 | Details |
| US6310558B1 | Selective calling system and selective calling receiver | Expired / Lapsed | 1995-07-13 | 2001-10-30 | 32 | Details |
| US6301253B1 | ATM cell buffer circuit and priority order allocating metho… | Expired / Lapsed | 1998-04-20 | 2001-10-09 | 24 | Details |
| US6292181B1 | Structure and method for controlling a host computer using … | Expired / Lapsed | 1994-09-02 | 2001-09-18 | 13 | Details |
| US6289009B1 | CDMA transceiver used in mobile communication system | Expired / Lapsed | 1998-07-21 | 2001-09-11 | 9 | Details |
| US6289096B1 | Call routing method using prioritized source-destination ro… | Expired / Lapsed | 1998-06-17 | 2001-09-11 | 6 | Details |
| US6289342B1 | Autonomous citation indexing and literature browsing using … | Expired / Lapsed | 1998-05-20 | 2001-09-11 | 16 | Details |
| US6282577B1 | Mobile terminal and method for controlling network connecti… | Expired / Lapsed | 1998-07-28 | 2001-08-28 | 6 | Details |
| JP3201368B2 | Semiconductor integrated circuit and test method therefor | Expired / Lapsed | 1999-01-18 | 2001-08-20 | 0 | Details |
| US6269302B1 | Simple mobile object position detecting system | Expired / Lapsed | 1998-12-01 | 2001-07-31 | 36 | Details |
| US6269256B1 | Foldable portable telephone set with automatic off-hook fun… | Expired / Lapsed | 1998-06-23 | 2001-07-31 | 15 | Details |
| US6263207B1 | Mobile radio communication system and radio circuit control… | Expired / Lapsed | 1998-06-16 | 2001-07-17 | 10 | Details |
| US6243758B1 | Internetwork multicast routing using flag bits indicating s… | Expired / Lapsed | 1997-06-05 | 2001-06-05 | 7 | Details |
| US6240424B1 | Method and system for similarity-based image classification | Expired / Lapsed | 1998-04-22 | 2001-05-29 | 20 | Details |
| US6240423B1 | Method and system for image querying using region based and… | Expired / Lapsed | 1998-04-22 | 2001-05-29 | 48 | Details |
| US6240089B1 | Method of multicasting for mobile host used in any one of s… | Expired / Lapsed | 1998-02-24 | 2001-05-29 | 20 | Details |
| US6223218B1 | System and method for automatically setting VLAN configurat… | Expired / Lapsed | 1998-09-04 | 2001-04-24 | 22 | Details |
| US6211505B1 | Method and apparatus for checking shape | Expired / Lapsed | 1998-12-22 | 2001-04-03 | 11 | Details |
| US6208653B1 | Method and apparatus for controlling a flow between termina… | Expired / Lapsed | 1998-03-16 | 2001-03-27 | 15 | Details |
| US6202177B1 | Error information reporting system for an error monitoring … | Expired / Lapsed | 1997-12-19 | 2001-03-13 | 13 | Details |
| US6192402B1 | Network management system and network management method cap… | Expired / Lapsed | 1998-08-07 | 2001-02-20 | 16 | Details |
| US6184782B1 | Vehicle with rear vehicle detecting apparatus | Expired / Lapsed | 1999-06-09 | 2001-02-06 | 24 | Details |
| US6178323B1 | System and method for determining a tentative master of a r… | Expired / Lapsed | 1998-11-06 | 2001-01-23 | 10 | Details |
| US6175829B1 | Method and apparatus for facilitating query reformulation | Expired / Lapsed | 1998-04-22 | 2001-01-16 | 55 | Details |
| US6175728B1 | Direct conversion receiver capable of canceling DC offset v… | Expired / Lapsed | 1998-03-03 | 2001-01-16 | 22 | Details |
| EP0584820B1 | Access system | Expired / Lapsed | 1993-08-26 | 2000-11-02 | 4 | Details |
| US6137473A | System and method for switching control between a host comp… | Expired / Lapsed | 1995-10-16 | 2000-10-24 | 19 | Details |
| US6117347A | Method of separating wafers into individual die | Expired / Lapsed | 1997-07-10 | 2000-09-12 | 6 | Details |
| US5884160A | Mobile voice mail message transmission system | Expired / Lapsed | 1996-08-27 | 1999-03-16 | 5 | Details |
| JP2862080B1 | Image processing apparatus and image processing method | Expired / Lapsed | 1997-11-27 | 1999-02-24 | 0 | Details |
| US5666654A | Method of channel allocation in a mobile telephone system | Expired / Lapsed | 1994-05-18 | 1997-09-09 | 44 | Details |
| USD382545S | Portable communication terminal | Expired / Lapsed | 1996-02-15 | 1997-08-19 | 1 | Details |
| US5628054A | Portable radio apparatus having batteries for supplying a p… | Expired / Lapsed | 1994-08-31 | 1997-05-06 | 7 | Details |
| US5550992A | Transmission timing control in a base station for cellular … | Expired / Lapsed | 1993-07-07 | 1996-08-27 | 14 | Details |
| US5507016A | Power control circuit for a digital radio telephone | Expired / Lapsed | 1993-10-19 | 1996-04-09 | 3 | Details |
| US5502736A | Viterbi decoder for decoding error-correcting encoded infor… | Expired / Lapsed | 1993-05-20 | 1996-03-26 | 22 | Details |
| US5460547A | Port replicator | Expired / Lapsed | 1993-08-10 | 1995-10-24 | 10 | Details |
| USD363289S | Wireless modem | Expired / Lapsed | 1994-07-28 | 1995-10-17 | 1 | Details |
| USD354277S | Docking station for a notebook computer | Expired / Lapsed | 1993-04-21 | 1995-01-10 | 1 | Details |
| US5347479A | Small-size wavelet transform apparatus | Expired / Lapsed | 1992-12-22 | 1994-09-13 | 72 | Details |
| US5283889A | Hardware based interface for mode switching to access memor… | Expired / Lapsed | 1993-03-11 | 1994-02-01 | 7 | Details |
| US5260973A | Device operable with an excellent spectrum suppression | Expired / Lapsed | 1991-06-28 | 1993-11-09 | 13 | Details |
| US5253238A | Arrangement for producing precise tracking error signal for… | Expired / Lapsed | 1992-07-17 | 1993-10-12 | 7 | Details |
| USD338465S | Display pager | Expired / Lapsed | 1989-08-23 | 1993-08-17 | 1 | Details |
| US5208777A | Semiconductor memory device | Expired / Lapsed | 1991-12-02 | 1993-05-04 | 5 | Details |
| USD327690S | Antenna for satellite communication systems | Expired / Lapsed | 1990-01-12 | 1992-07-07 | 1 | Details |
| US5122923A | Thin-film capacitors and process for manufacturing the same | Expired / Lapsed | 1990-08-30 | 1992-06-16 | 20 | Details |
| US5115161A | Ultrasonic motor | Expired / Lapsed | 1990-12-03 | 1992-05-19 | 13 | Details |
| US5111385A | Parallel-mode data transfer apparatus using sector memories | Expired / Lapsed | 1991-06-03 | 1992-05-05 | 2 | Details |
| USD325913S | Display pager | Expired / Lapsed | 1990-12-11 | 1992-05-05 | 1 | Details |
| USD325912S | Display pager | Expired / Lapsed | 1990-12-11 | 1992-05-05 | 1 | Details |
| US5068865A | Semiconductor laser module | Expired / Lapsed | 1989-06-09 | 1991-11-26 | 8 | Details |
| US5064390A | Coaxial pin connector having an array of conductive hollow … | Expired / Lapsed | 1990-09-12 | 1991-11-12 | 8 | Details |
| US5048060A | Digital signal receiving circuit with means for controlling… | Expired / Lapsed | 1988-11-16 | 1991-09-10 | 12 | Details |
| US5039624A | Method of manufacturing a bipolar transistor | Expired / Lapsed | 1989-04-26 | 1991-08-13 | 9 | Details |
| US5026306A | Connector suitable for high-speed transmission of signals | Expired / Lapsed | 1990-03-26 | 1991-06-25 | 88 | Details |
| USD314573S | Portable radio telephone set | Expired / Lapsed | 1989-10-26 | 1991-02-12 | 1 | Details |
| US4977611A | Portable radio apparatus having battery saved channel scann… | Expired / Lapsed | 1988-02-19 | 1990-12-11 | 21 | Details |
| US4965482A | Ultrasonic motor and method of adjusting the same | Expired / Lapsed | 1989-06-14 | 1990-10-23 | 20 | Details |
| US4920504A | Display managing arrangement with a display memory divided … | Expired / Lapsed | 1986-09-17 | 1990-04-24 | 5 | Details |
| US4907853A | Optical connector using a polarization-maintaining optical … | Expired / Lapsed | 1987-11-05 | 1990-03-13 | 24 | Details |
| US4907047A | Semiconductor memory device | Expired / Lapsed | 1988-06-07 | 1990-03-06 | 7 | Details |
| US4905086A | Television transmitter employing klystron with nonlinearity… | Expired / Lapsed | 1988-11-30 | 1990-02-27 | 23 | Details |
| US4881049A | QAM modulator/demodulator | Expired / Lapsed | 1988-04-04 | 1989-11-14 | 12 | Details |
| USD304192S | Radio pager | Expired / Lapsed | 1988-02-05 | 1989-10-24 | 1 | Details |
| US4864589A | Spread spectrum power line communications | Expired / Lapsed | 1986-07-24 | 1989-09-05 | 46 | Details |
| US4853612A | RF power control circuit | Expired / Lapsed | 1988-11-23 | 1989-08-01 | 4 | Details |
| US4852037A | Arithmetic unit for carrying out both multiplication and ad… | Expired / Lapsed | 1987-08-13 | 1989-07-25 | 7 | Details |
| US4850006A | Booster and charger unit used for hand-held portable teleph… | Expired / Lapsed | 1987-11-16 | 1989-07-18 | 12 | Details |
| US4847758A | Main memory access in a microprocessor system with a cache … | Expired / Lapsed | 1987-10-30 | 1989-07-11 | 13 | Details |
| US4843502A | Magnetic head slider loading mechanism for magnetic disk ap… | Expired / Lapsed | 1987-10-27 | 1989-06-27 | 10 | Details |
| US4842824A | Optical storage medium | Expired / Lapsed | 1987-10-22 | 1989-06-27 | 2 | Details |
| USD301875S | Handset for a mobile telephone set | Expired / Lapsed | 1987-09-25 | 1989-06-27 | 1 | Details |
| US4839862A | Static random access memory having Bi-CMOS construction | Expired / Lapsed | 1987-08-14 | 1989-06-13 | 10 | Details |
| US4814683A | Induction motor control apparatus | Expired / Lapsed | 1987-07-24 | 1989-03-21 | 9 | Details |
| US4809002A | Moving target indicator | Expired / Lapsed | 1985-02-13 | 1989-02-28 | 27 | Details |
| US4806109A | Shielded electrical connector | Expired / Lapsed | 1988-01-26 | 1989-02-21 | 5 | Details |
| US4797678A | Device for predicting unique word detection positions in a … | Expired / Lapsed | 1985-06-13 | 1989-01-10 | 5 | Details |
| US4794649A | Radio communication system with power saving disablement pr… | Expired / Lapsed | 1987-04-29 | 1988-12-27 | 18 | Details |
| USD298033S | Portable handset radio telephone | Expired / Lapsed | 1987-01-30 | 1988-10-11 | 1 | Details |
| US4769812A | Time division switching system having a priority selector r… | Expired / Lapsed | 1986-06-05 | 1988-09-06 | 27 | Details |
| US4766434A | Selective paging receiver with message display | Expired / Lapsed | 1986-09-11 | 1988-08-23 | 17 | Details |
| US4762389A | Optical fiber connector | Expired / Lapsed | 1985-03-26 | 1988-08-09 | 9 | Details |
| US4756808A | Piezoelectric transducer and process for preparation thereof | Expired / Lapsed | 1986-06-02 | 1988-07-12 | 32 | Details |
| US4742512A | Multipoint communication system having polling and reservat… | Expired / Lapsed | 1986-07-18 | 1988-05-03 | 14 | Details |
| US4734805A | Magnetic head supporting mechanism | Expired / Lapsed | 1985-02-11 | 1988-03-29 | 19 | Details |
| US4727484A | Memory address control apparatus with separate translation … | Expired / Lapsed | 1986-12-24 | 1988-02-23 | 2 | Details |
| USD294250S | Integrated voice and data terminal | Expired / Lapsed | 1986-03-12 | 1988-02-16 | 1 | Details |
| EP0097309B1 | Multiple access system and method | Expired / Lapsed | 1983-06-14 | 1987-11-11 | 18 | Details |
| US4706262A | FSK or FM burst signal generating apparatus | Expired / Lapsed | 1985-03-26 | 1987-11-10 | 16 | Details |
| US4704126A | Chemical polishing process for titanium and titanium alloy … | Expired / Lapsed | 1985-04-15 | 1987-11-03 | 11 | Details |
| USD291801S | Combination handset and stand cellular telephone unit | Expired / Lapsed | 1985-02-08 | 1987-09-08 | 1 | Details |
| US4686678A | Semiconductor laser apparatus with isolator | Expired / Lapsed | 1985-03-25 | 1987-08-11 | 10 | Details |
| USD291310S | Digital display pager | Expired / Lapsed | 1984-09-04 | 1987-08-11 | 1 | Details |
| US4682351A | Cordless Telephone system | Expired / Lapsed | 1985-10-23 | 1987-07-21 | 7 | Details |
| US4677687A | Method of establishing communication relay between mobile u… | Expired / Lapsed | 1985-06-21 | 1987-06-30 | 6 | Details |
| US4669805A | High frequency connector | Expired / Lapsed | 1985-06-21 | 1987-06-02 | 10 | Details |
| US4669053A | Portable personal computer | Expired / Lapsed | 1984-05-31 | 1987-05-26 | 6 | Details |
| US4667233A | Apparatus for discriminating a moving region and a stationa… | Expired / Lapsed | 1985-09-17 | 1987-05-19 | 20 | Details |
| US4665484A | Shared memory multiprocessing system & method | Expired / Lapsed | 1984-11-14 | 1987-05-12 | 4 | Details |
| US4661972A | Mobile telephone system for automatically paging absent mob… | Expired / Lapsed | 1986-02-14 | 1987-04-28 | 7 | Details |
| US4658416A | Automatic call transfer system capable of carrying out call… | Expired / Lapsed | 1985-02-11 | 1987-04-14 | 8 | Details |
| US4654882A | Radio communication device and method of controlling transm… | Expired / Lapsed | 1985-04-15 | 1987-03-31 | 8 | Details |
| US4641366A | Portable radio communication apparatus comprising an antenn… | Expired / Lapsed | 1985-10-03 | 1987-02-03 | 8 | Details |
| US4605566A | Method for forming thin films by absorption | Expired / Lapsed | 1984-08-22 | 1986-08-12 | 10 | Details |
| US4604583A | Frequency offset correcting circuit | Expired / Lapsed | 1984-08-24 | 1986-08-05 | 4 | Details |
| USD284079S | Telephone instrument | Expired / Lapsed | 1983-09-13 | 1986-06-03 | 1 | Details |
| US4592073A | Burst signal transmission system | Expired / Lapsed | 1983-11-29 | 1986-05-27 | 8 | Details |
| USD283711S | Data entry terminal | Expired / Lapsed | 1983-12-29 | 1986-05-06 | 1 | Details |
| US4587446A | Field effect transistor output circuit operable by a reduce… | Expired / Lapsed | 1983-05-31 | 1986-05-06 | 16 | Details |
| US4580240A | Memory arrangement operable as a cache and a local memory | Expired / Lapsed | 1982-12-14 | 1986-04-01 | 3 | Details |
| US4575582A | Mobile radio communications system | Expired / Lapsed | 1984-10-23 | 1986-03-11 | 4 | Details |
| US4564576A | Resist material comprising polymer of allylsilyl compound a… | Expired / Lapsed | 1984-05-22 | 1986-01-14 | 13 | Details |
| USD281975S | Radio receiver | Expired / Lapsed | 1983-09-09 | 1985-12-31 | 1 | Details |
| USD281974S | Mobile radio transceiver | Expired / Lapsed | 1983-08-15 | 1985-12-31 | 1 | Details |
| US4554540A | Signal format detection circuit for digital radio paging re… | Expired / Lapsed | 1982-11-19 | 1985-11-19 | 10 | Details |
| US4549142A | Phase demodulator including variable phase shifter for cont… | Expired / Lapsed | 1983-10-21 | 1985-10-22 | 4 | Details |
| US4526431A | Connector with mechanism for coupling and uncoupling plural… | Expired / Lapsed | 1984-02-13 | 1985-07-02 | 13 | Details |
| US4523332A | Battery saver circuit for use with paging receiver | Expired / Lapsed | 1983-04-11 | 1985-06-11 | 11 | Details |
| US4511907A | Color ink-jet printer | Expired / Lapsed | 1983-10-19 | 1985-04-16 | 9 | Details |
| US4496435A | Method of manufacturing thin film circuits | Expired / Lapsed | 1984-02-07 | 1985-01-29 | 13 | Details |
| US4488098A | Position control system for a movable member | Expired / Lapsed | 1982-05-18 | 1984-12-11 | 13 | Details |
| US4477807A | Radio pager with display device | Expired / Lapsed | 1982-06-04 | 1984-10-16 | 14 | Details |
| US4470141A | Multi-direction time division multiplex communication system | Expired / Lapsed | 1979-06-06 | 1984-09-04 | 11 | Details |
| US4467437A | Pattern matching device with a DP technique applied to feat… | Expired / Lapsed | 1982-03-01 | 1984-08-21 | 32 | Details |
| US4467355A | Freeze-picture transmission apparatus | Expired / Lapsed | 1982-01-26 | 1984-08-21 | 13 | Details |
| US4455609A | Apparatus for realtime fast reconstruction and display of d… | Expired / Lapsed | 1981-09-10 | 1984-06-19 | 4 | Details |
| US4429367A | Speech synthesizer apparatus | Expired / Lapsed | 1981-09-01 | 1984-01-31 | 7 | Details |
| US4424581A | Logic circuit with a test capability | Expired / Lapsed | 1981-11-24 | 1984-01-03 | 11 | Details |
| US4415770A | Malfunction detection system for a mobile radio telephone s… | Expired / Lapsed | 1982-04-13 | 1983-11-15 | 5 | Details |
| US4408099A | Radio paging system capable of accepting message with acces… | Expired / Lapsed | 1981-06-05 | 1983-10-04 | 15 | Details |
| US4393370A | Digital to analog converter using matrix of current sources | Expired / Lapsed | 1981-04-29 | 1983-07-12 | 19 | Details |
| US4392242A | Mobile communication system | Expired / Lapsed | 1981-03-05 | 1983-07-05 | 4 | Details |
| US4388538A | Delay signal generating circuit | Expired / Lapsed | 1980-09-29 | 1983-06-14 | 14 | Details |
| US4358794A | Facsimile and similar apparatus employing a plurality of so… | Expired / Lapsed | 1980-08-11 | 1982-11-09 | 13 | Details |
| US4352955A | Control signal transmission system for use in a mobile radi… | Expired / Lapsed | 1980-01-30 | 1982-10-05 | 3 | Details |
| US4348601A | Buffer circuit | Expired / Lapsed | 1979-08-08 | 1982-09-07 | 11 | Details |
| US4343536A | Electro-optic light deflector | Expired / Lapsed | 1980-05-12 | 1982-08-10 | 25 | Details |
| US4327440A | Signal detector for use in digital communication | Expired / Lapsed | 1980-03-19 | 1982-04-27 | 65 | Details |
| US4319221A | Similarity calculator comprising a buffer for a single inpu… | Expired / Lapsed | 1980-05-27 | 1982-03-09 | 3 | Details |
| US4301329A | Speech analysis and synthesis apparatus | Expired / Lapsed | 1979-01-04 | 1981-11-17 | 16 | Details |
| US4267583A | Memory test device with write and pseudo write signals | Expired / Lapsed | 1979-11-27 | 1981-05-12 | 22 | Details |
| US4239936A | Speech recognition system | Expired / Lapsed | 1978-12-28 | 1980-12-16 | 10 | Details |
| US4239331A | Mechanical optical switching device | Expired / Lapsed | 1978-12-12 | 1980-12-16 | 5 | Details |
| US4233526A | Semiconductor memory device having multi-gate transistors | Expired / Lapsed | 1978-04-10 | 1980-11-11 | 14 | Details |
| US4215369A | Digital transmission system for television video signals | Expired / Lapsed | 1978-12-15 | 1980-07-29 | 19 | Details |
| US4202011A | Television signal coder | Expired / Lapsed | 1977-12-28 | 1980-05-06 | 7 | Details |
| US4184085A | Semiconductor memory device comprising a p-n junction in a … | Expired / Lapsed | 1978-01-10 | 1980-01-15 | 25 | Details |
| US4178613A | Television picture special effects system using digital mem… | Expired / Lapsed | 1977-10-04 | 1979-12-11 | 13 | Details |
| US4173771A | High speed predictive encoding and decoding system for tele… | Expired / Lapsed | 1978-07-20 | 1979-11-06 | 4 | Details |
| US4172261A | Semiconductor device having a highly air-tight package | Expired / Lapsed | 1978-01-10 | 1979-10-23 | 19 | Details |
| US4167653A | Adaptive speech signal detector | Expired / Lapsed | 1978-04-12 | 1979-09-11 | 4 | Details |
| US4158750A | Speech recognition system with delayed output | Expired / Lapsed | 1977-05-26 | 1979-06-19 | 10 | Details |
| US4152674A | Air spaced etalon with mechanism for adjusting parallelism … | Expired / Lapsed | 1976-08-11 | 1979-05-01 | 13 | Details |
| US4145580A | Multi-frequency signal receiver | Expired / Lapsed | 1978-01-23 | 1979-03-20 | 7 | Details |
| US4144543A | Predictive codec capable of selecting one of at least three… | Expired / Lapsed | 1977-12-16 | 1979-03-13 | 13 | Details |
| US4144409A | Mobile radio communication control system for preventing er… | Expired / Lapsed | 1977-08-30 | 1979-03-13 | 3 | Details |
| US4143322A | Carrier wave recovery system apparatus using synchronous de… | Expired / Lapsed | 1977-09-30 | 1979-03-06 | 10 | Details |
| US4142205A | Interframe CODEC for composite color TV signals comprising … | Expired / Lapsed | 1977-07-19 | 1979-02-27 | 21 | Details |
| US4128809A | Time diversity receiver for processing repeatedly received … | Expired / Lapsed | 1977-08-31 | 1978-12-05 | 18 | Details |
| US4125878A | Memory circuit | Expired / Lapsed | 1977-07-11 | 1978-11-14 | 11 | Details |
| US4093962A | Adaptive predictive encoder | Expired / Lapsed | 1976-12-01 | 1978-06-06 | 4 | Details |
| US4092614A | Semiconductor laser device equipped with a silicon heat sink | Expired / Lapsed | 1977-01-07 | 1978-05-30 | 10 | Details |
| US4090096A | Timing signal generator circuit | Expired / Lapsed | 1977-03-29 | 1978-05-16 | 11 | Details |
| US4079318A | Space diversity receiving system with phase-controlled sign… | Expired / Lapsed | 1976-06-22 | 1978-03-14 | 12 | Details |
| US4079339A | Light self-injecting semiconductor laser device | Expired / Lapsed | 1976-05-12 | 1978-03-14 | 12 | Details |
| US4077053A | Television signal encoder utilizing a correlation between f… | Expired / Lapsed | 1976-04-08 | 1978-02-28 | 7 | Details |
| US4069360A | Magnetic record member and process for manufacturing the sa… | Expired / Lapsed | 1976-10-22 | 1978-01-17 | 27 | Details |
| US4057762A | Device for phase synchronizing a reproduced reference carri… | Expired / Lapsed | 1976-12-21 | 1977-11-08 | 6 | Details |
| US4053885A | Moving target indication radar | Expired / Lapsed | 1976-04-05 | 1977-10-11 | 8 | Details |
| US4051388A | Flip-flop accompanied by two current switches, one having a… | Expired / Lapsed | 1976-04-29 | 1977-09-27 | 11 | Details |
| US4049913A | System for recognizing speech continuously spoken with numb… | Expired / Lapsed | 1976-11-01 | 1977-09-20 | 7 | Details |
| US4034841A | Print wire actuating device for a dot matrix printer | Expired / Lapsed | 1975-10-21 | 1977-07-12 | 7 | Details |
| US4025730A | In-band signal receiver | Expired / Lapsed | 1975-12-22 | 1977-05-24 | 9 | Details |
| US4023886A | Optical transmission cable terminal and connector apparatus | Expired / Lapsed | 1975-06-02 | 1977-05-17 | 5 | Details |
| US4016588A | Non-volatile semiconductor memory device | Expired / Lapsed | 1975-12-24 | 1977-04-05 | 8 | Details |
| US4007488A | Solid-state color imaging apparatus having charge-coupled d… | Expired / Lapsed | 1976-02-06 | 1977-02-08 | 6 | Details |
| US3982815A | Connector for light-transmitting cables | Expired / Lapsed | 1975-06-03 | 1976-09-28 | 3 | Details |
| US3921072A | Self-adaptive equalizer for multilevel data transmission ac… | Expired / Lapsed | 1974-03-18 | 1975-11-18 | 5 | Details |
| US3913017A | Channel switching device for mobile radio communication equ… | Expired / Lapsed | 1974-03-28 | 1975-10-14 | 3 | Details |
| US3911410A | Light deflection stabilizing apparatus | Expired / Lapsed | 1974-05-17 | 1975-10-07 | 6 | Details |
| US3894789A | Light beam coupler for semiconductor lasers | Expired / Lapsed | 1974-07-29 | 1975-07-15 | 7 | Details |
| US3889811A | Flat-article sorting apparatus for an automatic mail handli… | Expired / Lapsed | 1973-06-18 | 1975-06-17 | 4 | Details |
| US3885229A | Document scanning apparatus | Expired / Lapsed | 1973-10-25 | 1975-05-20 | 8 | Details |
| US3825691A | F-t rada receiver with level discrimination | Expired / Lapsed | 1972-07-17 | 1974-07-23 | 17 | Details |
| US3825831A | Differential pulse code modulation apparatus | Expired / Lapsed | 1971-10-26 | 1974-07-23 | 3 | Details |
| US3816722A | Computer for calculating the similarity between patterns an… | Expired / Lapsed | 1971-09-28 | 1974-06-11 | 28 | Details |
| US3806830A | Composite semiconductor laser device | Expired / Lapsed | 1973-02-09 | 1974-04-23 | 10 | Details |
| US3778776A | Electronic computer comprising a plurality of general purpo… | Expired / Lapsed | 1971-06-10 | 1973-12-11 | 3 | Details |
| US3769587A | Synchronizing system for phase-modulation telecommunication… | Expired / Lapsed | 1972-10-06 | 1973-10-30 | 9 | Details |
| US3767984A | Schottky barrier type field effect transistor | Expired / Lapsed | 1972-09-13 | 1973-10-23 | 5 | Details |
| US3755739A | Data signal transmission system employing phase modulation | Expired / Lapsed | 1971-03-02 | 1973-08-28 | 6 | Details |
| US3737882A | Cylindrical magnetic domain memory apparatus | Expired / Lapsed | 1972-01-28 | 1973-06-05 | 12 | Details |
| US3731161A | Semiconductor integrated circuit | Expired / Lapsed | 1971-09-03 | 1973-05-01 | 4 | Details |
| US3706961A | Automatic alarm system | Expired / Lapsed | 1970-03-10 | 1972-12-19 | 3 | Details |
| US3706053A | Synthesized network for signal transmission | Expired / Lapsed | 1971-02-18 | 1972-12-12 | 0 | Details |
| US3699261A | Frame synchronizing circuit for high clock frequency digita… | Expired / Lapsed | 1970-11-18 | 1972-10-17 | 7 | Details |
| US3689895A | Micro-program control system | Expired / Lapsed | 1970-11-23 | 1972-09-05 | 13 | Details |
| US3663320A | Vapor growth process for gallium arsenide | Expired / Lapsed | 1969-07-30 | 1972-05-16 | 3 | Details |
| US3659162A | Semiconductor integrated circuit device having improved wir… | Expired / Lapsed | 1969-12-19 | 1972-04-25 | 1 | Details |
| US3634667A | Digital interpolator | Expired / Lapsed | 1970-04-27 | 1972-01-11 | 12 | Details |
| US3633035A | Multiplexed optical communications system | Expired / Lapsed | 1969-11-13 | 1972-01-04 | 4 | Details |
| US3622897A | Bias circuit for a differential amplifier | Expired / Lapsed | 1969-12-19 | 1971-11-23 | 2 | Details |
| US3617824A | Mos device with a metal-silicide gate | Expired / Lapsed | 1968-07-10 | 1971-11-02 | 2 | Details |
| US3614191A | Associative memory employing holography | Expired / Lapsed | 1969-04-01 | 1971-10-19 | 17 | Details |
| US3604991A | Injection-type semiconductor laser element | Expired / Lapsed | 1970-03-30 | 1971-09-14 | 4 | Details |
| US3600700A | Circuit for phase locking an oscillator to a signal modulat… | Expired / Lapsed | 1969-06-06 | 1971-08-17 | 5 | Details |
| US3594619A | Face-bonded semiconductor device having improved heat dissi… | Expired / Lapsed | 1968-09-25 | 1971-07-20 | 1 | Details |
| US3593302A | Periphery-control-units switching device | Expired / Lapsed | 1968-03-29 | 1971-07-13 | 14 | Details |
| US3584221A | Polarization and time division light multiplex communciatio… | Expired / Lapsed | 1968-12-26 | 1971-06-08 | 3 | Details |
| US3582725A | Semiconductor integrated circuit device and the method of m… | Expired / Lapsed | 1969-08-21 | 1971-06-01 | 10 | Details |
| US3573750A | High-speed memory system | Expired / Lapsed | 1969-04-01 | 1971-04-06 | 20 | Details |
| US3567856A | Pattern generator apparatus | Expired / Lapsed | 1969-02-18 | 1971-03-02 | 11 | Details |
| US3551221A | Method of manufacturing a semiconductor integrated circuit | Expired / Lapsed | 1968-11-26 | 1970-12-29 | 0 | Details |
| US3551813A | Time division satellite communication system | Expired / Lapsed | 1967-11-16 | 1970-12-29 | 0 | Details |
| US3533965A | Low expansion material | Expired / Lapsed | 1967-09-11 | 1970-10-13 | 0 | Details |
| US3530251A | Video telephone set | Expired / Lapsed | 1967-11-21 | 1970-09-22 | 0 | Details |
| US3522586A | Automatic character recognition apparatus | Expired / Lapsed | 1966-08-23 | 1970-08-04 | 0 | Details |
| US3521274A | Multilevel code signal transmission system | Expired / Lapsed | 1967-12-20 | 1970-07-21 | 0 | Details |
| US3519991A | Optical character reading apparatus | Expired / Lapsed | 1968-02-02 | 1970-07-07 | 0 | Details |
| US3517312A | Telephone and telegraph switching system utilizing a statio… | Expired / Lapsed | 1967-02-23 | 1970-06-23 | 0 | Details |
| US3515957A | Semiconductor device having low capacitance junction | Expired / Lapsed | 1968-05-15 | 1970-06-02 | 0 | Details |
| US3499713A | Laser communication device | Expired / Lapsed | 1966-06-13 | 1970-03-10 | 0 | Details |
| US3478171A | Time-division telephone exchange system having a variably s… | Expired / Lapsed | 1969-01-10 | 1969-11-11 | 0 | Details |
| US3478336A | Method and apparatus for writing information into plated wi… | Expired / Lapsed | 1966-08-16 | 1969-11-11 | 0 | Details |
| US3468598A | Light beam transmission system | Expired / Lapsed | 1967-08-22 | 1969-09-23 | 0 | Details |
| US3465106A | Echo suppressor for long-distance communication network | Expired / Lapsed | 1965-09-08 | 1969-09-02 | 0 | Details |
| US3463887A | Time-division multiplexed pcm transmission system | Expired / Lapsed | 1964-11-03 | 1969-08-26 | 0 | Details |
| US3457473A | Semiconductor device with schottky barrier formed on (100) … | Expired / Lapsed | 1966-11-08 | 1969-07-22 | 0 | Details |
| US3428899A | Selective communication system wherein fach information pul… | Expired / Lapsed | 1965-10-29 | 1969-02-18 | 0 | Details |
| US3423647A | Semiconductor device having regions with preselected differ… | Expired / Lapsed | 1965-07-28 | 1969-01-21 | 0 | Details |
| US3402365A | Monochromatic optical maser | Expired / Lapsed | 1964-07-14 | 1968-09-17 | 0 | Details |
| US3396380A | Digital-analogue signal converter | Expired / Lapsed | 1964-08-18 | 1968-08-06 | 0 | Details |
| US3384822A | Frequency-shift-keying phase-modulation code transmission s… | Expired / Lapsed | 1965-03-19 | 1968-05-21 | 0 | Details |
| US3377586A | Decoder with bipolar-hyperbolic companding characteristics | Expired / Lapsed | 1965-03-03 | 1968-04-09 | 2 | Details |
| US3370128A | Combination frequency and time-division wireless multiplex … | Expired / Lapsed | 1964-07-22 | 1968-02-20 | 0 | Details |
| US3336590A | Signal comparator | Expired / Lapsed | 1964-04-01 | 1967-08-15 | 2 | Details |
| US3336589A | Nonlinear decoding device | Expired / Lapsed | 1964-02-04 | 1967-08-15 | 2 | Details |
| US3320611A | Time-division radio relay communication system | Expired / Lapsed | 1965-03-30 | 1967-05-16 | 1 | Details |
| US3316128A | Semiconductor device | Expired / Lapsed | 1963-10-15 | 1967-04-25 | 0 | Details |
| US3305855A | Encoder and a decoder with nonlinear quantization | Expired / Lapsed | 1963-11-01 | 1967-02-21 | 2 | Details |
| US3293365A | Telephone answering and recording apparatus with a single a… | Expired / Lapsed | 1964-07-22 | 1966-12-20 | 2 | Details |
| US3292081A | Apparatus for measuring the negative ratio of voltage | Expired / Lapsed | 1963-05-17 | 1966-12-13 | 2 | Details |
| US3288656A | Semiconductor device | Expired / Lapsed | 1964-02-26 | 1966-11-29 | 1 | Details |
| US3286237A | Tabulator | Expired / Lapsed | 1962-10-26 | 1966-11-15 | 0 | Details |
| US3281828A | Encoder with non-linear quantization | Expired / Lapsed | 1963-08-27 | 1966-10-25 | 1 | Details |
| US3275749A | Two-stage multiplex switching system employing interlaced c… | Expired / Lapsed | 1965-10-08 | 1966-09-27 | 2 | Details |
| US3239908A | Method of making a semiconductor device | Expired / Lapsed | 1962-07-03 | 1966-03-15 | 2 | Details |
| US3238463A | Synchronous demodulator circuit | Expired / Lapsed | 1963-09-16 | 1966-03-01 | 2 | Details |
| US3235664A | Bidirectional code translation circuit | Expired / Lapsed | 1962-02-13 | 1966-02-15 | 1 | Details |
| US3231834A | Telemetering capsule for physiological measurements | Expired / Lapsed | 1962-10-05 | 1966-01-25 | 2 | Details |
| US3221220A | Low capacitance semiconductor junction | Expired / Lapsed | 1961-07-25 | 1965-11-30 | 2 | Details |
| US3216411A | Ingestible transmitter for the detection of bleeding in the… | Expired / Lapsed | 1963-05-13 | 1965-11-09 | 2 | Details |
| US3211997A | Fault locating means for electric power transmission lines,… | Expired / Lapsed | 1960-01-13 | 1965-10-12 | 1 | Details |
| US3206730A | Tunnel diode memory device | Expired / Lapsed | 1962-06-11 | 1965-09-14 | 1 | Details |
| US3202989A | Pulse compression radar receiver for ranging moving targets | Expired / Lapsed | 1961-07-06 | 1965-08-24 | 2 | Details |
| US3177414A | Device comprising a plurality of transistors | Expired / Lapsed | 1962-07-03 | 1965-04-06 | 2 | Details |
| US3171187A | Method of manufacturing semiconductor devices | Expired / Lapsed | 1963-05-01 | 1965-03-02 | 2 | Details |
| US3167002A | High-speed printing apparatus in computer systems | Expired / Lapsed | 1962-06-06 | 1965-01-26 | 2 | Details |
| US3157875A | Moving target radar delay line filter | Expired / Lapsed | 1962-02-05 | 1964-11-17 | 1 | Details |
| US3155776A | Party line sub-station | Expired / Lapsed | 1960-04-19 | 1964-11-03 | 2 | Details |
| US3146327A | Sealed magnetically operable switch | Expired / Lapsed | 1962-11-06 | 1964-08-25 | 1 | Details |
| US3144515A | Synchronization system in timedivision code transmission | Expired / Lapsed | 1961-03-27 | 1964-08-11 | 2 | Details |
| US3129308A | Vacuum circuit breaker having buffering means in relatively… | Expired / Lapsed | 1962-04-23 | 1964-04-14 | 2 | Details |
| US3113253A | Capacitors | Expired / Lapsed | 1959-08-03 | 1963-12-03 | 2 | Details |
| US3079537A | Capacitor | Expired / Lapsed | 1959-12-04 | 1963-02-26 | 2 | Details |
| US3069625A | Reception system of high sensitivity for frequency-or phase… | Expired / Lapsed | 1959-03-12 | 1962-12-18 | 0 | Details |
| US3065302A | Synchronizing system in time-division multiplex code modula… | Expired / Lapsed | 1960-08-19 | 1962-11-20 | 0 | Details |
| US3061422A | Method of maching semiconductors | Expired / Lapsed | 1960-11-25 | 1962-10-30 | 2 | Details |
| US2836776A | Capacitor | Expired / Lapsed | 1956-05-04 | 1958-05-27 | 2 | Details |