Inventor · disambiguated record
Utpal Kumar Chakrabarti
Also filed as: CHAKRABARTI UTPAL · CHAKRABARTI UTPAL K · CHAKRABARTI UTPAL KUMAR
31 granted patents·4 pending applications·358 citations·filing 1985–2017
97Inventor score
Files withLUCENT TECHNOLOGIES INC11CISCO TECH INC5AGERE SYST GUARDIAN CORP2AGERE SYSTEMS INC2GLOBAL POWER DEVICE COMPANY2
Top patents by PatentIndex Score
35 records- 0184US9235019B2Self-aligning optical connector assemblyCISCO TECH INC·Filed 2014·Granted Jan 12, 2016·6 cites·9 claims
- 0282US6556605B1Method and device for preventing zinc/iron interaction in a semiconductor laserTRIQUENT TECHNOLOGY HOLDING CO·Filed 2000·Granted Apr 29, 2003·25 cites·35 claims
- 0375US5802091ATantalum-aluminum oxide coatings for semiconductor devicesLUCENT TECHNOLOGIES INC·Filed 1996·Granted Sep 1, 1998·43 cites·13 claims
- 0473US8876410B2Self-aligning connectorized fiber array assemblyCISCO TECH INC·Filed 2013·Granted Nov 4, 2014·3 cites·20 claims
- 0572US4749255ACoating for optical devicesAMERICAN TELEPHONE & TELEGRAPH·Filed 1985·Granted Jun 7, 1988·27 cites·14 claims
- 0670US8871025B2SiC single crystals with reduced dislocation density grown by step-wise periodic perturbation techniqueGUPTA AVINASH·Filed 2007·Granted Oct 28, 2014·2 cites·16 claims
- 0768US5668049AMethod of making a GaAs-based laser comprising a facet coating with gas phase sulphurLUCENT TECHNOLOGIES INC·Filed 1996·Granted Sep 16, 1997·32 cites·6 claims
- 0867US6317444B1Optical device including carbon-doped contact layersAGERE SYSTEM OPTOELECTRONICS G·Filed 1998·Granted Nov 13, 2001·48 cites·8 claims
- 0963US6744796B1Passivated optical device and method of forming the sameTRIQUINT TECHNOLOGY HOLDING CO·Filed 2000·Granted Jun 1, 2004·12 cites·9 claims
- 1063US6320265B1Semiconductor device with high-temperature ohmic contact and method of forming the sameLUCENT TECHNOLOGIES INC·Filed 1999·Granted Nov 20, 2001·21 cites·28 claims
- 1160US6734036B2Semiconductor device and method of fabricationAGERE SYSTEMS INC·Filed 2002·Granted May 11, 2004·8 cites·12 claims
- 1259US6214178B1Focused ion beam formation of angled optoelectronic devicesLUCENT TECHNOLOGIES INC·Filed 1998·Granted Apr 10, 2001·22 cites·6 claims
- 1357US6489659B2Non-hermetic APDAGERE SYSTEMS INC·Filed 2000·Granted Dec 3, 2002·9 cites·7 claims
- 1456US5911830AMethod and fixture for laser bar facet coatingLUCENT TECHNOLOGIES INC·Filed 1997·Granted Jun 15, 1999·17 cites·18 claims
- 1553US9755752B2Method for manufacturing an optical communication deviceCISCO TECH INC·Filed 2014·Granted Sep 5, 2017·0 cites·11 claims
- 1653US9219122B2Silicon carbide semiconductor devicesGLOBAL POWER DEVICE COMPANY·Filed 2014·Granted Dec 22, 2015·0 cites·14 claims
- 1752US6037006AMethod and fixture for laser bar facet coatingLUCENT TECHNOLOGIES INC·Filed 1999·Granted Mar 14, 2000·13 cites·17 claims
- 1851US10735101B2Method for manufacturing an optical communication deviceCISCO TECH INC·Filed 2017·Granted Aug 4, 2020·0 cites·11 claims
- 1950US6638857B1E-beam deposition method and apparatus for providing high purity oxide filmsTRIQUINT TECHNOLOGY HOLDING CO·Filed 2000·Granted Oct 28, 2003·2 cites·6 claims
- 2048US8268663B2Annealing of semi-insulating CdZnTe crystalsSZELES CSABA·Filed 2009·Granted Sep 18, 2012·0 cites·5 claims
- 2148US6247625B1Anvil pad configuration for laser cleavingLUCENT TECHNOLOGIES INC·Filed 1998·Granted Jun 19, 2001·11 cites·9 claims
- 2247US7612345B2Radiation detector crystal and method of formation thereofENDICOTT INTERCONNECT TECH INC·Filed 2006·Granted Nov 3, 2009·0 cites·15 claims
- 2347US6048747ALaser bar cleaving apparatusLUCENT TECHNOLOGIES INC·Filed 1998·Granted Apr 11, 2000·13 cites·8 claims
- 2447US2016172481A1Silicon carbide semiconductor devicesGLOBAL POWER TECHNOLOGIES GROUP INC·Filed 2015·Application pending·0 cites
- 2546US9151950B2Lid design to seal optical components of a transceiver moduleCISCO TECH INC·Filed 2012·Granted Oct 6, 2015·0 cites·20 claims
- 2646US5346855AMethod of making an INP-based DFB laserAT & T BELL LAB·Filed 1993·Granted Sep 13, 1994·19 cites·6 claims
- 2744US5719077AFixture and method for laser fabrication by in-situ cleaving of semiconductor barsLUCENT TECHNOLOGIES INC·Filed 1995·Granted Feb 17, 1998·13 cites·24 claims
- 2844US2013188970A1Packaging Platform For Opto-Electronic Assemblies Using Silicon-Based Turning MirrorsSHASTRI KALPENDU·Filed 2013·Application pending·0 cites
- 2944US2009250692A1Radiation Detector With Asymmetric ContactsEV PRODUCTS INC·Filed 2009·Application pending·0 cites
- 3043US6437425B1Semiconductor devices which utilize low K dielectricsAGERE SYST GUARDIAN CORP·Filed 2000·Granted Aug 20, 2002·1 cites·9 claims
- 3140US9276069B2Protective interface in silicon carbide semiconductor devicesGLOBAL POWER DEVICE COMPANY·Filed 2013·Granted Mar 1, 2016·0 cites·9 claims
- 3232US6098862AIncrementally continuous laser cleaving processLUCENT TECHNOLOGIES INC·Filed 1998·Granted Aug 8, 2000·2 cites·8 claims
- 3332US2003091257A1Optical waveguide devices and method of fabricationFiled 2001·Application pending·0 cites
- 3431US6386533B1Laser processing fixtureAGERE SYST GUARDIAN CORP·Filed 1998·Granted May 14, 2002·3 cites·14 claims
- 3531US6033926AMethod for making multiple wavelength semiconductor lasers on a single waferLUCENT TECHNOLOGIES INC·Filed 1998·Granted Mar 7, 2000·6 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →