Assignee
AMERICAN TELEPHONE & TELEGRAPH
US·1,173 granted patents·71,202 citations·filing 1975–1997
Top patents by PatentIndex Score
1,173 records- 0199US4879519APredistortion compensated linear amplifierAMERICAN TELEPHONE & TELEGRAPH·Filed 1988·Granted Nov 7, 1989·124 cites·25 claims
- 0299US4873492AAmplifier with modulated resistor gain controlAMERICAN TELEPHONE & TELEGRAPH·Filed 1988·Granted Oct 10, 1989·158 cites·27 claims
- 0399US4864824AThin film shape memory alloy and method for producingAMERICAN TELEPHONE & TELEGRAPH·Filed 1988·Granted Sep 12, 1989·757 cites·20 claims
- 0499US4741038ASound location arrangementAMERICAN TELEPHONE & TELEGRAPH·Filed 1986·Granted Apr 26, 1988·314 cites·14 claims
- 0599US4682180AMultidirectional feed and flush-mounted surface wave antennaAMERICAN TELEPHONE & TELEGRAPH·Filed 1985·Granted Jul 21, 1987·250 cites·10 claims
- 0698US4937653ASemiconductor integrated circuit chip-to-chip interconnection schemeAMERICAN TELEPHONE & TELEGRAPH·Filed 1988·Granted Jun 26, 1990·361 cites·12 claims
- 0798US4922486AUser to network interface protocol for packet communications networksAMERICAN TELEPHONE & TELEGRAPH·Filed 1988·Granted May 1, 1990·456 cites·6 claims
- 0898US4918031AProcesses depending on plasma generation using a helical resonatorAMERICAN TELEPHONE & TELEGRAPH·Filed 1988·Granted Apr 17, 1990·238 cites·38 claims
- 0998US4897711ASubassembly for optoelectronic devicesAMERICAN TELEPHONE & TELEGRAPH·Filed 1988·Granted Jan 30, 1990·244 cites·19 claims
- 1098US4885551AFeed forward linear amplifierAMERICAN TELEPHONE & TELEGRAPH·Filed 1988·Granted Dec 5, 1989·110 cites·20 claims
- 1198US4852968AOptical fiber comprising a refractive index trenchAMERICAN TELEPHONE & TELEGRAPH·Filed 1987·Granted Aug 1, 1989·259 cites·25 claims
- 1298US4789983AWireless network for wideband indoor communicationsAMERICAN TELEPHONE & TELEGRAPH·Filed 1987·Granted Dec 6, 1988·310 cites·10 claims
- 1398US4670770AIntegrated circuit chip-and-substrate assemblyAMERICAN TELEPHONE & TELEGRAPH·Filed 1984·Granted Jun 2, 1987·210 cites·18 claims
- 1497US5413884AGrating fabrication using electron beam lithographyAMERICAN TELEPHONE & TELEGRAPH·Filed 1992·Granted May 9, 1995·153 cites·26 claims
- 1597US4924492AMethod and apparatus for wideband transmission of digital signals between, for example, a telephone central office and customer premisesAMERICAN TELEPHONE & TELEGRAPH·Filed 1988·Granted May 8, 1990·234 cites·28 claims
- 1697US4922522ATelecommunications access to lottery systemsAMERICAN TELEPHONE & TELEGRAPH·Filed 1988·Granted May 1, 1990·481 cites·5 claims
- 1797US4914650ABandwidth allocation and congestion control scheme for an integrated voice and data networkAMERICAN TELEPHONE & TELEGRAPH·Filed 1988·Granted Apr 3, 1990·220 cites·16 claims
- 1897US4909592ACommunication cable having water blocking provisions in coreAMERICAN TELEPHONE & TELEGRAPH·Filed 1988·Granted Mar 20, 1990·185 cites·33 claims
- 1997US4872736AConnector assembly having a latching mechanismAMERICAN TELEPHONE & TELEGRAPH·Filed 1988·Granted Oct 10, 1989·246 cites·17 claims
- 2097US4825354AMethod of file access in a distributed processing computer networkAMERICAN TELEPHONE & TELEGRAPH·Filed 1985·Granted Apr 25, 1989·366 cites·14 claims
- 2197US4787706ADuplex optical fiber connectorAMERICAN TELEPHONE & TELEGRAPH·Filed 1987·Granted Nov 29, 1988·231 cites·36 claims
- 2297US4775401AMethod of producing an optical fiberAMERICAN TELEPHONE & TELEGRAPH·Filed 1987·Granted Oct 4, 1988·85 cites·13 claims
- 2397US4730888AOptimized guided wave communication systemAMERICAN TELEPHONE & TELEGRAPH·Filed 1986·Granted Mar 15, 1988·227 cites·9 claims
- 2496US4913517ACommunication cable having water blocking strength membersAMERICAN TELEPHONE & TELEGRAPH·Filed 1988·Granted Apr 3, 1990·117 cites·24 claims
- 2596US4904036ASubassemblies for optoelectronic hybrid integrated circuitsAMERICAN TELEPHONE & TELEGRAPH·Filed 1988·Granted Feb 27, 1990·139 cites·21 claims
- 2696US4900126ABonded array of transmission mediaAMERICAN TELEPHONE & TELEGRAPH·Filed 1988·Granted Feb 13, 1990·186 cites·29 claims
- 2796US4896319AIdentification and authentication of end user systems for packet communications network servicesAMERICAN TELEPHONE & TELEGRAPH·Filed 1988·Granted Jan 23, 1990·250 cites·12 claims
- 2896US4893071ACapacitive incremental position measurement and motion controlAMERICAN TELEPHONE & TELEGRAPH·Filed 1988·Granted Jan 9, 1990·91 cites·29 claims
- 2996US4878611AProcess for controlling solder joint geometry when surface mounting a leadless integrated circuit package on a substrateAMERICAN TELEPHONE & TELEGRAPH·Filed 1988·Granted Nov 7, 1989·298 cites·9 claims
- 3096US4872160AIntegrated packetized voice and data switching systemAMERICAN TELEPHONE & TELEGRAPH·Filed 1988·Granted Oct 3, 1989·238 cites·7 claims
- 3196US4850036ARadio communication system using synchronous frequency hopping transmissionsAMERICAN TELEPHONE & TELEGRAPH·Filed 1987·Granted Jul 18, 1989·190 cites·17 claims
- 3296US4818060AOptical fiber building cablesAMERICAN TELEPHONE & TELEGRAPH·Filed 1987·Granted Apr 4, 1989·132 cites·17 claims
- 3396US4763353ATerminal based adjunct call manager for a communication systemAMERICAN TELEPHONE & TELEGRAPH·Filed 1986·Granted Aug 9, 1988·287 cites·16 claims
- 3496US4756590AOptical component packageAMERICAN TELEPHONE & TELEGRAPH·Filed 1985·Granted Jul 12, 1988·122 cites·10 claims
- 3596US4737983AAutomatic call distributor telephone serviceAMERICAN TELEPHONE & TELEGRAPH·Filed 1985·Granted Apr 12, 1988·301 cites·16 claims
- 3696US4730894AOptical fiber cable having a prefabricated strength system and methods of makingAMERICAN TELEPHONE & TELEGRAPH·Filed 1986·Granted Mar 15, 1988·136 cites·29 claims
- 3796US4728864AAC plasma displayAMERICAN TELEPHONE & TELEGRAPH·Filed 1986·Granted Mar 1, 1988·115 cites·12 claims
- 3896US4710760APhotoelastic touch-sensitive screenAMERICAN TELEPHONE & TELEGRAPH·Filed 1985·Granted Dec 1, 1987·252 cites·20 claims
- 3996US4703474ASpread spectrum code-division-multiple-access (SS-CDMA) lightwave communication systemAMERICAN TELEPHONE & TELEGRAPH·Filed 1986·Granted Oct 27, 1987·193 cites·15 claims
- 4096US4701016AThixotropic grease composition and cable comprising sameAMERICAN TELEPHONE & TELEGRAPH·Filed 1985·Granted Oct 20, 1987·122 cites·11 claims
- 4196US4696438ASpool for holding optical fiberAMERICAN TELEPHONE & TELEGRAPH·Filed 1986·Granted Sep 29, 1987·85 cites·13 claims
- 4295US4953159AAudiographics conferencing arrangementAMERICAN TELEPHONE & TELEGRAPH·Filed 1989·Granted Aug 28, 1990·760 cites·39 claims
- 4395US4934785AOptical fiber connectorAMERICAN TELEPHONE & TELEGRAPH·Filed 1989·Granted Jun 19, 1990·128 cites·24 claims
- 4495US4899333AArchitecture of the control of a high performance packet switching distribution networkAMERICAN TELEPHONE & TELEGRAPH·Filed 1988·Granted Feb 6, 1990·209 cites·10 claims
- 4595US4899358ACall announcement arrangementAMERICAN TELEPHONE & TELEGRAPH·Filed 1988·Granted Feb 6, 1990·219 cites·26 claims
- 4695US4897874AMetropolitan area network arrangement for serving virtual data networksAMERICAN TELEPHONE & TELEGRAPH·Filed 1988·Granted Jan 30, 1990·198 cites·8 claims
- 4795US4893886ANon-destructive optical trap for biological particles and method of doing sameAMERICAN TELEPHONE & TELEGRAPH·Filed 1987·Granted Jan 16, 1990·214 cites·5 claims
- 4895US4893336ACall forwarding arrangementAMERICAN TELEPHONE & TELEGRAPH·Filed 1987·Granted Jan 9, 1990·191 cites·5 claims
- 4995US4873393ALocal area network cabling arrangementAMERICAN TELEPHONE & TELEGRAPH·Filed 1988·Granted Oct 10, 1989·97 cites·11 claims
- 5095US4872157AArchitecture and organization of a high performance metropolitan area telecommunications packet networkAMERICAN TELEPHONE & TELEGRAPH·Filed 1988·Granted Oct 3, 1989·188 cites·14 claims
Showing the top 50 of 1,173 patent records by PatentIndex Score.
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