Bell Telephone Laboratories, Inc.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Bell Telephone Laboratories, Inc..The latest application filed is for "diversity receiver arrangement for digital signals".
Company Profile
0.200.0
- Bell Telephone Laboratories, Inc. - Murray Hill NJ
- Bell Telephone Laboratories, Incorporated - Murray Hill NJ
- Bell Telephone Laboratories, Incorporated - Holmdel NJ
- Bell Telephone Laboratories, Inc. - New York NY
- Bell Telephone Laboratories, Incorporated - Murry Hill NJ
Patent Activity
| Patent | Date |
|---|---|
| Diversity receiver arrangement for digital signals Grant 5,109,392 - McDonald April 28, 1 | 1992-04-28 |
| Resistive field shields for high voltage devices Grant H665 - Knolle , et al. August 1, 1 | 1989-08-01 |
| On-line documentation facility Grant 4,800,485 - Ackroff , et al. January 24, 1 | 1989-01-24 |
| Optical package with improved fiber alignment fixture Grant H551 - Chaoui , et al. December 6, 1 | 1988-12-06 |
| Simplified recovery of data signals from quadrature-related carrier signals Grant 4,759,039 - Debus, Jr. , et al. July 19, 1 | 1988-07-19 |
| Decision-directed control circuit Grant 4,759,036 - Meyers July 19, 1 | 1988-07-19 |
| Passband equalization of modulated quadrature-related carrier signals Grant 4,759,037 - Debus, Jr. , et al. July 19, 1 | 1988-07-19 |
| Unidirectional second order gradient microphone Grant 4,742,548 - Sessler , et al. May 3, 1 | 1988-05-03 |
| Electrical connectors for circuit panels Grant 4,738,625 - Burton , et al. April 19, 1 | 1988-04-19 |
| Wall-mounted microphone Grant D295,169 - Cho , et al. April 12, 1 | 1988-04-12 |
| Technique for synthesizing the modulation of a time varying waveform with a data signal Grant 4,736,389 - Debus, Jr. , et al. April 5, 1 | 1988-04-05 |
| Terrestrial communications system Grant 4,730,310 - Acampora , et al. March 8, 1 | 1988-03-08 |
| Vestigial sideband signal decoder Grant 4,730,345 - Reeve, III March 8, 1 | 1988-03-08 |
| Data decision-directed timing and carrier recovery circuits Grant 4,726,043 - Levesque February 16, 1 | 1988-02-16 |
| Apparatus for locating programs resident on a cartridge of a cartridge programmable communication system Grant 4,703,416 - Crupi , et al. October 27, 1 | 1987-10-27 |
| Supervisory audio tone detection in a radio channel Grant 4,698,769 - McPherson , et al. October 6, 1 | 1987-10-06 |
| Clock adjustment method and apparatus for synchronous data communications Grant 4,694,472 - Torok , et al. September 15, 1 | 1987-09-15 |
| Computer system with tasking Grant 4,685,125 - Zave August 4, 1 | 1987-08-04 |
| Time slot polling arrangement for multiple stage time division switch Grant 4,672,604 - Bhatia , et al. June 9, 1 | 1987-06-09 |
| Electronic network for collective decision based on large number of connections between signals Grant 4,660,166 - Hopfield April 21, 1 | 1987-04-21 |
| Switching control for multiple stage time division switch Grant 4,633,461 - Banton , et al. December 30, 1 | 1986-12-30 |
| Processing of encrypted voice signals Grant 4,608,455 - McNair August 26, 1 | 1986-08-26 |
| Laser surgical system Grant 4,583,539 - Karlin , et al. April 22, 1 | 1986-04-22 |
| Programmable multiple type data set Grant 4,578,796 - Charalambous , et al. March 25, 1 | 1986-03-25 |
| Unitary construction circuit pack carrier Grant 4,509,647 - Shevchuk April 9, 1 | 1985-04-09 |
| Variable cycle-time microcomputer Grant 4,509,120 - Daudelin April 2, 1 | 1985-04-02 |
| Method and circuitry for encoding telephone ringing signals Grant 4,508,937 - Burger , et al. April 2, 1 | 1985-04-02 |
| Methods of aligning and mounting a plurality of electrical leads to a plurality of terminals Grant 4,505,035 - Burton , et al. March 19, 1 | 1985-03-19 |
| Battery feed circuit Grant 4,476,350 - Aull , et al. October 9, 1 | 1984-10-09 |
| Input/output method Grant 4,470,115 - Wehr September 4, 1 | 1984-09-04 |
| Wide bandwidth hybrid mode feeds Grant 4,468,672 - Dragone August 28, 1 | 1984-08-28 |
| Video signal actuated switch Grant 4,468,701 - Burcher , et al. August 28, 1 | 1984-08-28 |
| Echo canceller Grant 4,464,545 - Werner August 7, 1 | 1984-08-07 |
| Monolithically integrated distributed Bragg reflector laser Grant 4,464,762 - Furuya August 7, 1 | 1984-08-07 |
| Circuitry for allocating access to a demand-shared bus Grant 4,463,445 - Grimes July 31, 1 | 1984-07-31 |
| Trace facility for use in multiprocessing environment Grant 4,462,077 - York July 24, 1 | 1984-07-24 |
| Wavelength filters Grant 4,461,535 - Marcatili July 24, 1 | 1984-07-24 |
| Scanning phased array antenna system Grant 4,460,897 - Gans July 17, 1 | 1984-07-17 |
| Housing for a telephone Grant D274,724 - Genaro , et al. July 17, 1 | 1984-07-17 |
| Cartridge for a printed circuit board or similar article Grant D274,731 - Girardi , et al. July 17, 1 | 1984-07-17 |
| Technique for enabling operation of a computer system with a consistent state of a linked list data structure after a main memory failure Grant 4,459,658 - Gabbe , et al. July 10, 1 | 1984-07-10 |
| Circuitry for allocating access to a demand shared bus Grant 4,458,314 - Grimes July 3, 1 | 1984-07-03 |
| Cordless telephone system Grant 4,456,793 - Baker , et al. June 26, 1 | 1984-06-26 |
| Multidimensional channel coding Grant 4,457,004 - Gersho , et al. June 26, 1 | 1984-06-26 |
| Automated hardware inventory system Grant 4,456,790 - Soyack June 26, 1 | 1984-06-26 |
| Voice switching arrangement for telephone conferencing Grant 4,456,792 - Courtney-Pratt June 26, 1 | 1984-06-26 |
| Parallel/series error correction circuit Grant 4,456,996 - Haas , et al. June 26, 1 | 1984-06-26 |
| High speed optical switch and time division optical demultiplexer using a control beam at a linear/nonlinear interface Grant 4,455,643 - Smith , et al. June 19, 1 | 1984-06-19 |
| Operational amplifier with improved output capability Grant 4,454,479 - Spires June 12, 1 | 1984-06-12 |
| Optical grating using a liquid suspension of dielectric particles Grant 4,453,805 - Ashkin , et al. June 12, 1 | 1984-06-12 |
| Pictorial information processing technique Grant 4,454,593 - Fleming , et al. June 12, 1 | 1984-06-12 |
| Method and circuitry for reducing flicker in symbol displays Grant 4,454,506 - Netravali , et al. June 12, 1 | 1984-06-12 |
| Asynchronous data transmission method and circuitry Grant 4,454,383 - Judd June 12, 1 | 1984-06-12 |
| Wire stripping tool Grant 4,451,948 - Goodrich , et al. June 5, 1 | 1984-06-05 |
| Directory lookup method and apparatus Grant 4,453,217 - Boivie June 5, 1 | 1984-06-05 |
| Active predistorter for linearity compensation Grant 4,453,133 - Travis June 5, 1 | 1984-06-05 |
| Fabrication of MOS integrated circuit devices Grant 4,450,620 - Fuls , et al. May 29, 1 | 1984-05-29 |
| Rectifier control system for a DC power plant system Grant 4,451,773 - Papathomas , et al. May 29, 1 | 1984-05-29 |
| Switching system auxiliary line transfer circuit Grant 4,451,704 - Winkelman May 29, 1 | 1984-05-29 |
| Call completion circuit and method Grant 4,451,705 - Burke , et al. May 29, 1 | 1984-05-29 |
| Telephone stand Grant D273,909 - Genaro , et al. May 22, 1 | 1984-05-22 |
| Spectrally stabilized laser Grant 4,450,565 - Copeland May 22, 1 | 1984-05-22 |
| Reflective containment of electromagnetic radiation in matrix isolation thin films Grant 4,448,524 - Brus , et al. May 15, 1 | 1984-05-15 |
| One-bit full adder circuit Grant 4,449,197 - Henry , et al. May 15, 1 | 1984-05-15 |
| Adaptive threshold circuit Grant 4,449,102 - Frazer May 15, 1 | 1984-05-15 |
| Harmonic generation using a surface of metal particles Grant 4,448,485 - Bergman , et al. May 15, 1 | 1984-05-15 |
| High frequency DC-to-DC converter Grant 4,449,174 - Ziesse May 15, 1 | 1984-05-15 |
| Silence editing speech processor Grant 4,449,190 - Flanagan , et al. May 15, 1 | 1984-05-15 |
| Voice-actuated switching system Grant 4,449,238 - Lee , et al. May 15, 1 | 1984-05-15 |
| ACD Combined handset and headset arrangement Grant 4,449,017 - Burke , et al. May 15, 1 | 1984-05-15 |
| Traveling wave, electrooptic devices with effective velocity matching Grant 4,448,479 - Alferness May 15, 1 | 1984-05-15 |
| Light emitting diode Grant 4,447,822 - Chin , et al. May 8, 1 | 1984-05-08 |
| Low dispension single mode fiber Grant 4,447,125 - Lazay , et al. May 8, 1 | 1984-05-08 |
| Low loss single mode fiber Grant 4,447,127 - Cohen , et al. May 8, 1 | 1984-05-08 |
| Ring-trip detector Grant 4,447,675 - Arntsen , et al. May 8, 1 | 1984-05-08 |
| Multimode optical fiber with radially varying attenuation center density Grant 4,447,124 - Cohen May 8, 1 | 1984-05-08 |
| Current confinement in semiconductor light emitting devices Grant 4,447,905 - Dixon , et al. May 8, 1 | 1984-05-08 |
| Mechanized testing of subscriber facilities Grant 4,446,341 - Rubin May 1, 1 | 1984-05-01 |
| Copper electroplating procedure Grant 4,445,980 - Smith May 1, 1 | 1984-05-01 |
| Method for recording and updating stored messages in an announcement system Grant 4,446,336 - Bethel , et al. May 1, 1 | 1984-05-01 |
| Video display Grant D273,584 - McGarvey , et al. April 24, 1 | 1984-04-24 |
| Semiconductor laser with conductive current mask Grant 4,445,218 - Coldren April 24, 1 | 1984-04-24 |
| Snap-together housing Grant 4,445,008 - Rocca , et al. April 24, 1 | 1984-04-24 |
| Communication line interface for controlling data information having differing transmission characteristics Grant 4,445,213 - Baugh , et al. April 24, 1 | 1984-04-24 |
| Electromagnetic transducer Grant 4,443,667 - Hunt April 17, 1 | 1984-04-17 |
| Induced crystallographic modification of aromatic compounds Grant 4,443,532 - Joy , et al. April 17, 1 | 1984-04-17 |
| Semiconductor integrated circuit capacitor Grant 4,441,249 - Alspector , et al. April 10, 1 | 1984-04-10 |
| Small dual frequency band, dual-mode feedhorn Grant 4,442,437 - Chu , et al. April 10, 1 | 1984-04-10 |
| Method of making self-aligned guard regions for semiconductor device elements Grant 4,441,931 - Levin April 10, 1 | 1984-04-10 |
| Photoluminescence method of testing double heterostructure wafers Grant 4,442,402 - Besomi , et al. April 10, 1 | 1984-04-10 |
| Data over voice transmission arrangement Grant 4,442,540 - Allen April 10, 1 | 1984-04-10 |
| Apparatus for determining the location of faults in a transmission line Grant 4,440,985 - Federico , et al. April 3, 1 | 1984-04-03 |
| Amplifier with controlled gain Grant 4,441,080 - Saari April 3, 1 | 1984-04-03 |
| Foil electrode SPER light source Grant 4,441,189 - Macklin , et al. April 3, 1 | 1984-04-03 |
| Methods of packaging an electronic device Grant 4,439,918 - Carroll, II , et al. April 3, 1 | 1984-04-03 |
| Collision avoiding system and protocol for a multiple access digital communications system Grant 4,439,763 - Limb March 27, 1 | 1984-03-27 |
| Low dispersion single mode fiber Grant 4,439,007 - Lazay , et al. March 27, 1 | 1984-03-27 |
| Terminal independent color memory for a digital image display system Grant 4,439,759 - Fleming , et al. March 27, 1 | 1984-03-27 |
| Bonded sheath cable Grant 4,439,632 - Aloisio, Jr. , et al. * March 27, 1 | 1984-03-27 |
| Method and apparatus for compiling three-dimensional digital image information Grant 4,439,760 - Fleming March 27, 1 | 1984-03-27 |
| Terminal generation of dynamically redefinable character sets Grant 4,439,761 - Fleming , et al. March 27, 1 | 1984-03-27 |
| Corrugated waveguide or feedhorn assembled from grooved pieces Grant 4,439,748 - Dragone March 27, 1 | 1984-03-27 |
| Compact scanning beam antenna feed arrangement Grant 4,439,773 - Chu March 27, 1 | 1984-03-27 |
| Multilayered optical integrated circuit Grant 4,438,447 - Copeland, III , et al. March 20, 1 | 1984-03-20 |
| System for accessing and testing subscriber loops Grant 4,438,298 - Rubin March 20, 1 | 1984-03-20 |
| Solid state device with conductors having chain-shaped grain structure Grant 4,438,450 - Sheng , et al. March 20, 1 | 1984-03-20 |
| Adaptive cross-polarization interference cancellation system Grant 4,438,530 - Steinberger March 20, 1 | 1984-03-20 |
| Double barrier double heterostructure laser Grant 4,438,446 - Tsang March 20, 1 | 1984-03-20 |
| Call coverage arrangement Grant 4,436,962 - Davis , et al. March 13, 1 | 1984-03-13 |
| Adaptive differential PCM coding Grant 4,437,087 - Petr March 13, 1 | 1984-03-13 |
| Process for forming complementary integrated circuit devices Grant 4,435,895 - Parrillo , et al. March 13, 1 | 1984-03-13 |
| Data link using integrated optics devices Grant 4,436,365 - Hodgins , et al. March 13, 1 | 1984-03-13 |
| Implied principal addressing in a call coverage arrangement Grant 4,436,963 - Cottrell , et al. March 13, 1 | 1984-03-13 |
| Telephone ringing signal generator Grant 4,436,960 - Harmon, Jr. March 13, 1 | 1984-03-13 |
| Method for fabricating complementary field effect transistor devices Grant 4,435,896 - Parrillo , et al. March 13, 1 | 1984-03-13 |
| Electrically conducting thermoplastic material, its manufacture, and resulting article Grant 4,436,648 - Khanna , et al. March 13, 1 | 1984-03-13 |
| Technique for extracting features from images Grant 4,435,836 - Rubin March 6, 1 | 1984-03-06 |
| Double-clad optical fiberguide Grant 4,435,040 - Cohen , et al. March 6, 1 | 1984-03-06 |
| Passively mode locked laser having a saturable absorber Grant 4,435,809 - Tsang , et al. March 6, 1 | 1984-03-06 |
| Multiple amplifier interconnection for optimal sensitivity Grant 4,434,405 - Gans , et al. February 28, 1 | 1984-02-28 |
| Injection molded knockout Grant 4,434,120 - Aloisio, Jr. , et al. February 28, 1 | 1984-02-28 |
| Hot melt coated optical fiber Grant 4,432,607 - Levy February 21, 1 | 1984-02-21 |
| Formation of sidewall oxide layers by reactive oxygen ion etching to define submicron features Grant 4,432,132 - Kinsbron , et al. February 21, 1 | 1984-02-21 |
| Programmable logic array interconnection matrix Grant 4,433,331 - Kollaritsch February 21, 1 | 1984-02-21 |
| Self-adjusting fiberoptic connector assembly Grant 4,432,604 - Schwab February 21, 1 | 1984-02-21 |
| Demultiplexer circuit Grant 4,432,087 - Hubbard February 14, 1 | 1984-02-14 |
| Fastening arrangement for abutting structural members Grant 4,430,837 - Kirschenbaum February 14, 1 | 1984-02-14 |
| Non-ohmic device using TiO.sub.2 Grant 4,430,255 - Yan February 7, 1 | 1984-02-07 |
| Interactive graphics transmission system employing an adaptive stylus for reduced bandwidth Grant 4,430,526 - Brown , et al. February 7, 1 | 1984-02-07 |
| Reconstruction of quantized DPCM or PCM signals Grant 4,430,670 - Netravali February 7, 1 | 1984-02-07 |
| Apparatus for increasing the speed of a circuit having a string of IGFETs Grant 4,430,583 - Shoji February 7, 1 | 1984-02-07 |
| Dictation/transcription method and arrangement Grant 4,430,726 - Kasday February 7, 1 | 1984-02-07 |
| Microwave transistor Grant 4,428,111 - Swartz January 31, 1 | 1984-01-31 |
| Continuous strip electret transducer array Grant 4,429,190 - Stockbridge January 31, 1 | 1984-01-31 |
| Electret transducer with variable effective air gap Grant 4,429,193 - Busch-Vishniac , et al. January 31, 1 | 1984-01-31 |
| Voltage detector circuit Grant 4,429,185 - Adrian , et al. January 31, 1 | 1984-01-31 |
| Optical system for interrogation of the status of a switch Grant 4,429,231 - De Loach, Jr. , et al. January 31, 1 | 1984-01-31 |
| Selective shifting ac plasma panel Grant 4,429,256 - Ngo January 31, 1 | 1984-01-31 |
| Electret transducer with variably charged electret foil Grant 4,429,191 - Busch-Vishniac , et al. January 31, 1 | 1984-01-31 |
| Offset-nulled sample-and-hold amplifier Grant 4,429,282 - Saari January 31, 1 | 1984-01-31 |
| Fault and error detection arrangement Grant 4,429,391 - Lee January 31, 1 | 1984-01-31 |
| Electrical terminal pin conditioning apparatus Grant 4,428,092 - Lipari January 31, 1 | 1984-01-31 |
| Structured logic array Grant 4,429,238 - Harrison January 31, 1 | 1984-01-31 |
| Lithographic method of making optical fibers Grant 4,428,761 - Howard , et al. January 31, 1 | 1984-01-31 |
| Signal multiplexing circuit Grant RE31,510 - Carbrey January 24, 1 | 1984-01-24 |
| Peripheral unit controller Grant 4,428,044 - Liron January 24, 1 | 1984-01-24 |
| Apparatus and method for plasma-assisted etching of wafers Grant 4,427,516 - Levinstein , et al. January 24, 1 | 1984-01-24 |
| GaAs FETs Having long-term stability Grant 4,426,656 - DiLorenzo , et al. January 17, 1 | 1984-01-17 |
| X-Ray microbeam generator Grant 4,426,722 - Fujimura January 17, 1 | 1984-01-17 |
| Plasma pretreatment with BCl.sub.3 to remove passivation formed by fluorine-etch Grant 4,426,246 - Kravitz , et al. January 17, 1 | 1984-01-17 |
| Partial band - whole band energy discriminator Grant 4,426,729 - Gritton January 17, 1 | 1984-01-17 |
| Satellite communications system with frequency channelized beams Grant 4,425,639 - Acampora , et al. January 10, 1 | 1984-01-10 |
| Telephone stand or similar article Grant D272,149 - Genaro , et al. January 10, 1 | 1984-01-10 |
| Multiport programmable digital data set Grant 4,425,664 - Sherman , et al. January 10, 1 | 1984-01-10 |
| Telephone stand or similar article Grant D272,150 - Genaro , et al. January 10, 1 | 1984-01-10 |
| Method and apparatus for introducing program changes in program-controlled systems Grant 4,425,618 - Bishop , et al. January 10, 1 | 1984-01-10 |
| Optically toggled bidirectional switch Grant 4,424,544 - Chang , et al. January 3, 1 | 1984-01-03 |
| Electroless palladium process Grant 4,424,241 - Abys January 3, 1 | 1984-01-03 |
| Communication system parkhold conferencing Grant 4,424,418 - Moore , et al. January 3, 1 | 1984-01-03 |
| Loop fault location Grant 4,424,479 - Brown January 3, 1 | 1984-01-03 |
| Channel interface circuit with high speed data message header field translation and direct memory access Grant 4,424,565 - Larson January 3, 1 | 1984-01-03 |
| Fabrication of optical connectors Grant 4,424,174 - Howarth January 3, 1 | 1984-01-03 |
| Telephone stand Grant D271,972 - Genaro , et al. December 27, 1 | 1983-12-27 |
| Ambient temperature rechargeable battery Grant 4,423,125 - Basu December 27, 1 | 1983-12-27 |
| Telephone stand or similar article Grant D271,971 - Genaro , et al. December 27, 1 | 1983-12-27 |
| Normally off bilateral switch Grant 4,423,330 - El Hamamsy December 27, 1 | 1983-12-27 |
| End-fire microphone and loudspeaker structures Grant 4,421,957 - Wallace, Jr. December 20, 1 | 1983-12-20 |
| Optical information storage and retrieval Grant 4,422,159 - Craighead , et al. December 20, 1 | 1983-12-20 |
| Method and arrangement for signaling the transmission mode of a communication system Grant 4,421,951 - Van Bosse December 20, 1 | 1983-12-20 |
| Electrical-optical interface network Grant 4,422,179 - Albanese December 20, 1 | 1983-12-20 |
| Magnetically actuated device comprising a magnetically anisotropic element Grant 4,420,732 - Jin December 13, 1 | 1983-12-13 |
| FET Amplifier with wide dynamic range Grant 4,420,724 - Owen December 13, 1 | 1983-12-13 |
| Technique for encoding multi-level signals Grant 4,420,771 - Pirsch December 13, 1 | 1983-12-13 |
| Fabrication of sintered high-silica glasses Grant 4,419,115 - Johnson, Jr. , et al. December 6, 1 | 1983-12-06 |
| Channel interface circuit providing virtual channel number translation and direct memory access Grant 4,419,728 - Larson December 6, 1 | 1983-12-06 |
| Small dual frequency band hybrid mode feed Grant 4,419,671 - Noerpel December 6, 1 | 1983-12-06 |
| Bias circuit for microwave FETs Grant 4,419,632 - Morris December 6, 1 | 1983-12-06 |
| Regulation of multiple-output DC-DC converters Grant 4,419,723 - Wilson, Jr. December 6, 1 | 1983-12-06 |
| Voiceband data set Grant 4,419,756 - Cheng-Quispe , et al. December 6, 1 | 1983-12-06 |
| Electrical keying arrangement Grant 4,418,971 - Liss December 6, 1 | 1983-12-06 |
| Apparatus and method for plasma-assisted etching of wafers Grant 4,419,201 - Levinstein , et al. December 6, 1 | 1983-12-06 |
| Telephone stand Grant D271,691 - Bhat , et al. December 6, 1 | 1983-12-06 |
| Apparatus for testing multi-conductor cables Grant 4,418,312 - Figler , et al. November 29, 1 | 1983-11-29 |
| Circuit interlock arrangement Grant 4,417,778 - Halvorsen , et al. November 29, 1 | 1983-11-29 |
| Devices based on surface tension changes Grant 4,417,786 - Beni , et al. November 29, 1 | 1983-11-29 |
| Frequency modulation transmitter for voice or data Grant 4,418,416 - Lese , et al. November 29, 1 | 1983-11-29 |
| Errorless line protection switcher Grant 4,417,348 - Abbruscato November 22, 1 | 1983-11-22 |
| Noise and bit rate reduction arrangements Grant 4,417,102 - Allen November 22, 1 | 1983-11-22 |
| Tri-state logic buffer circuit Grant 4,417,162 - Keller , et al. November 22, 1 | 1983-11-22 |
| Matrix addressable electrochromic devices Grant 4,416,516 - Beni , et al. November 22, 1 | 1983-11-22 |
| Adaptive multitone transmission parameter test arrangement Grant 4,417,337 - Favin , et al. November 22, 1 | 1983-11-22 |
| Digital conferencing method and arrangement Grant 4,416,007 - Huizinga , et al. November 15, 1 | 1983-11-15 |
| Optical fiber switch apparatus Grant 4,415,228 - Stanley November 15, 1 | 1983-11-15 |
| Optical fiber switch apparatus Grant 4,415,229 - McCullough November 15, 1 | 1983-11-15 |
| Optical receiver with improved dynamic range Grant 4,415,803 - Muoi November 15, 1 | 1983-11-15 |
| Timing acquisition in voiceband data sets Grant 4,416,015 - Gitlin November 15, 1 | 1983-11-15 |
| Telephone ringing signal generator Grant 4,415,961 - Harmon, Jr. November 15, 1 | 1983-11-15 |
| Etching of optical surfaces Grant 4,415,414 - Burton , et al. November 15, 1 | 1983-11-15 |
| Compliant contact pin Grant 4,415,220 - Kant November 15, 1 | 1983-11-15 |
| Adaptive equalizer Grant 4,415,872 - Karabinis November 15, 1 | 1983-11-15 |
Company Registrations
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