Assignee
BELL COMMUNICATIONS RES
US·659 granted patents·69,945 citations·filing 1984–1998
Top patents by PatentIndex Score
659 records- 0199US5460904AElectrolyte activatable lithium-ion rechargeable battery cellBELL COMMUNICATIONS RES·Filed 1993·Granted Oct 24, 1995·255 cites·32 claims
- 0299US5296318ARechargeable lithium intercalation battery with hybrid polymeric electrolyteBELL COMMUNICATIONS RES·Filed 1993·Granted Mar 22, 1994·385 cites·18 claims
- 0399US5226383AGas foil rotating substrate holderBELL COMMUNICATIONS RES·Filed 1992·Granted Jul 13, 1993·564 cites·10 claims
- 0499US4949350ASurface emitting semiconductor laserBELL COMMUNICATIONS RES·Filed 1989·Granted Aug 14, 1990·164 cites·13 claims
- 0599US4928301ATeleconferencing terminal with camera behind display screenBELL COMMUNICATIONS RES·Filed 1989·Granted May 22, 1990·416 cites·11 claims
- 0699US4829378ASub-band coding of images with low computational complexityBELL COMMUNICATIONS RES·Filed 1988·Granted May 9, 1989·150 cites·8 claims
- 0798US5613032ASystem and method for recording, playing back and searching multimedia events wherein video, audio and text can be searched and retrievedBELL COMMUNICATIONS RES·Filed 1994·Granted Mar 18, 1997·383 cites·22 claims
- 0898US5456000AMethod of making an electrolyte activatable lithium-ion rechargeable battery cellBELL COMMUNICATIONS RES·Filed 1995·Granted Oct 10, 1995·248 cites·23 claims
- 0998US5426641AAdaptive class AB amplifier for TDMA wireless communications systemsBELL COMMUNICATIONS RES·Filed 1994·Granted Jun 20, 1995·214 cites·10 claims
- 1098US5418091APolymeric electrolytic cell separator membraneBELL COMMUNICATIONS RES·Filed 1993·Granted May 23, 1995·225 cites·11 claims
- 1198US5414540AFrequency-selective optical switch employing a frequency dispersive element, polarization dispersive element and polarization modulating elementsBELL COMMUNICATIONS RES·Filed 1993·Granted May 9, 1995·335 cites·16 claims
- 1298US5343496AInterference suppression in CDMA systemsBELL COMMUNICATIONS RES·Filed 1993·Granted Aug 30, 1994·364 cites·15 claims
- 1398US5248564AC-axis perovskite thin films grown on silicon dioxideBELL COMMUNICATIONS RES·Filed 1992·Granted Sep 28, 1993·188 cites·11 claims
- 1498US4891694AFiber optic cable television distribution systemBELL COMMUNICATIONS RES·Filed 1988·Granted Jan 2, 1990·243 cites·2 claims
- 1598US4883561ALift-off and subsequent bonding of epitaxial filmsBELL COMMUNICATIONS RES·Filed 1988·Granted Nov 28, 1989·296 cites·19 claims
- 1698US4655547AShaping optical pulses by amplitude and phase maskingBELL COMMUNICATIONS RES·Filed 1985·Granted Apr 7, 1987·238 cites·21 claims
- 1797US5638446AMethod for the secure distribution of electronic files in a distributed environmentBELL COMMUNICATIONS RES·Filed 1995·Granted Jun 10, 1997·505 cites·13 claims
- 1897US5481533AHybrid intra-cell TDMA/inter-cell CDMA for wireless networksBELL COMMUNICATIONS RES·Filed 1994·Granted Jan 2, 1996·325 cites·18 claims
- 1997US5442623APassive protected self healing ring networkBELL COMMUNICATIONS RES·Filed 1992·Granted Aug 15, 1995·200 cites·10 claims
- 2097US5400069AEye contact video-conferencing system and screenBELL COMMUNICATIONS RES·Filed 1993·Granted Mar 21, 1995·276 cites·33 claims
- 2197US5371532ACommunications architecture and method for distributing information servicesBELL COMMUNICATIONS RES·Filed 1992·Granted Dec 6, 1994·526 cites·22 claims
- 2297US5335011ASound localization system for teleconferencing using self-steering microphone arraysBELL COMMUNICATIONS RES·Filed 1993·Granted Aug 2, 1994·552 cites·19 claims
- 2397US5298896AMethod and system for high order conditional entropy codingBELL COMMUNICATIONS RES·Filed 1993·Granted Mar 29, 1994·225 cites·16 claims
- 2497US5265107ABroadband absorber having multiple quantum wells of different thicknessesBELL COMMUNICATIONS RES·Filed 1992·Granted Nov 23, 1993·110 cites·7 claims
- 2597US5194341ASilica electrolyte element for secondary lithium batteryBELL COMMUNICATIONS RES·Filed 1991·Granted Mar 16, 1993·224 cites·10 claims
- 2697US5136647AMethod for secure time-stamping of digital documentsBELL COMMUNICATIONS RES·Filed 1990·Granted Aug 4, 1992·546 cites·18 claims
- 2797US5091320AEllipsometric control of material growthBELL COMMUNICATIONS RES·Filed 1990·Granted Feb 25, 1992·259 cites·17 claims
- 2897US4988157AOptical switch using bubblesBELL COMMUNICATIONS RES·Filed 1990·Granted Jan 29, 1991·253 cites·14 claims
- 2997US4874963ANeuromorphic learning networksBELL COMMUNICATIONS RES·Filed 1988·Granted Oct 17, 1989·165 cites·12 claims
- 3097US4821119AMethod and apparatus for low bit-rate interframe video codingBELL COMMUNICATIONS RES·Filed 1988·Granted Apr 11, 1989·271 cites·17 claims
- 3197US4794346ABroadband semiconductor optical amplifier structureBELL COMMUNICATIONS RES·Filed 1988·Granted Dec 27, 1988·99 cites·31 claims
- 3297US4773085APhase and frequency detector circuitsBELL COMMUNICATIONS RES·Filed 1987·Granted Sep 20, 1988·130 cites·15 claims
- 3397US4748618ATelecommunications interfaceBELL COMMUNICATIONS RES·Filed 1986·Granted May 31, 1988·255 cites·13 claims
- 3496US5926789AAudio-based wide area information systemBELL COMMUNICATIONS RES·Filed 1996·Granted Jul 20, 1999·306 cites·44 claims
- 3596US5896128ASystem and method for associating multimedia objects for use in a video conferencing systemBELL COMMUNICATIONS RES·Filed 1995·Granted Apr 20, 1999·271 cites·15 claims
- 3696US5883606AFlat virtual displays for virtual realityBELL COMMUNICATIONS RES·Filed 1996·Granted Mar 16, 1999·124 cites·7 claims
- 3796US5840087AMethod for making laminated rechargeable battery cellsBELL COMMUNICATIONS RES·Filed 1996·Granted Nov 24, 1998·136 cites·2 claims
- 3896US5838035ABarrier layer for ferroelectric capacitor integrated on siliconBELL COMMUNICATIONS RES·Filed 1997·Granted Nov 17, 1998·185 cites·17 claims
- 3996US5705291ARechargeable battery cell having surface-treated lithiated intercalation positive electrodeBELL COMMUNICATIONS RES·Filed 1996·Granted Jan 6, 1998·201 cites·11 claims
- 4096US5673322ASystem and method for providing protocol translation and filtering to access the world wide web from wireless or low-bandwidth networksBELL COMMUNICATIONS RES·Filed 1996·Granted Sep 30, 1997·1.1k cites·29 claims
- 4196US5478668ARechargeable lithium battery constructionBELL COMMUNICATIONS RES·Filed 1994·Granted Dec 26, 1995·166 cites·17 claims
- 4296US5335345ADynamic query optimization using partial informationBELL COMMUNICATIONS RES·Filed 1990·Granted Aug 2, 1994·246 cites·4 claims
- 4396US5327486AMethod and system for managing telecommunications such as telephone callsBELL COMMUNICATIONS RES·Filed 1993·Granted Jul 5, 1994·947 cites·40 claims
- 4496US5283829ASystem and method for paying bills electronicallyBELL COMMUNICATIONS RES·Filed 1992·Granted Feb 1, 1994·1k cites·19 claims
- 4596US5241395AAdaptive transform coding using variable block sizeBELL COMMUNICATIONS RES·Filed 1992·Granted Aug 31, 1993·253 cites·16 claims
- 4696US5201992AMethod for making tapered microminiature silicon structuresBELL COMMUNICATIONS RES·Filed 1991·Granted Apr 13, 1993·140 cites·13 claims
- 4796US5173695AHigh-speed flexible variable-length-code decoderBELL COMMUNICATIONS RES·Filed 1990·Granted Dec 22, 1992·168 cites·18 claims
- 4896US5136646ADigital document time-stamping with catenate certificateBELL COMMUNICATIONS RES·Filed 1991·Granted Aug 4, 1992·477 cites·13 claims
- 4996US5084891ATechnique for jointly performing bit synchronization and error detection in a TDM/TDMA systemBELL COMMUNICATIONS RES·Filed 1989·Granted Jan 28, 1992·188 cites·38 claims
- 5096US5031194AWideband digital equalizers for subscriber loopsBELL COMMUNICATIONS RES·Filed 1989·Granted Jul 9, 1991·108 cites·16 claims
Showing the top 50 of 659 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when BELL COMMUNICATIONS RES files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →