Assignee
CHORUM TECHNOLOGIES INC
US·21 granted patents·1,223 citations·filing 1996–2000
Top patents by PatentIndex Score
21 records- 0197US5867291AProgrammable wavelength routerCHORUM TECHNOLOGIES INC·Filed 1996·Granted Feb 2, 1999·136 cites·21 claims
- 0292US5963291AOptical attenuator using polarization modulation and a feedback controllerCHORUM TECHNOLOGIES INC·Filed 1997·Granted Oct 5, 1999·123 cites·16 claims
- 0392US5912748ASwitchable wavelength routerCHORUM TECHNOLOGIES INC·Filed 1997·Granted Jun 15, 1999·116 cites·16 claims
- 0491US6243200B1Optical wavelength router based on polarization interferometerCHORUM TECHNOLOGIES INC·Filed 2000·Granted Jun 5, 2001·46 cites·23 claims
- 0590US6166838AOptical add/drop wavelength switchCHORUM TECHNOLOGIES INC·Filed 1998·Granted Dec 26, 2000·83 cites·25 claims
- 0689US5978116AProgrammable wavelength routerCHORUM TECHNOLOGIES INC·Filed 1999·Granted Nov 2, 1999·64 cites·17 claims
- 0788US6208444B1Apparatus for wavelength demultiplexing using a multi-cavity etalonCHORUM TECHNOLOGIES INC·Filed 1999·Granted Mar 27, 2001·92 cites·21 claims
- 0885US6337934B1NxN switch array with polarization displacerCHORUM TECHNOLOGIES INC·Filed 2000·Granted Jan 8, 2002·23 cites·39 claims
- 0984US6175432B1Multi-wavelength cross-connect optical networkCHORUM TECHNOLOGIES INC·Filed 1999·Granted Jan 16, 2001·68 cites·58 claims
- 1083US6208442B1Programmable optical multiplexerCHORUM TECHNOLOGIES INC·Filed 1998·Granted Mar 27, 2001·64 cites·24 claims
- 1182US6163393AMethod and apparatus for wavelength multipexing/demultiplexingCHORUM TECHNOLOGIES INC·Filed 1999·Granted Dec 19, 2000·51 cites·31 claims
- 1281USRE37044ETunable add/drop optical filterCHORUM TECHNOLOGIES INC·Filed 1999·Granted Feb 6, 2001·50 cites·30 claims
- 1381US6097518AN x M optical wavelength routing switchCHORUM TECHNOLOGIES INC·Filed 1998·Granted Aug 1, 2000·58 cites·19 claims
- 1479US6118912AApparatus for holding and tuning a thin-film optical assemblyCHORUM TECHNOLOGIES INC·Filed 1999·Granted Sep 12, 2000·48 cites·16 claims
- 1573US6141076ASpatial light modulators constructed from ferroelectric liquid crystal devices with twisted structureCHORUM TECHNOLOGIES INC·Filed 1997·Granted Oct 31, 2000·36 cites·16 claims
- 1673US6134358AN x N switch array with reduced componentsCHORUM TECHNOLOGIES INC·Filed 1998·Granted Oct 17, 2000·37 cites·27 claims
- 1772US6137606AOptical wavelength routerCHORUM TECHNOLOGIES INC·Filed 1999·Granted Oct 24, 2000·26 cites·9 claims
- 1869US6201593B1Optical communication system having a liquid crystal routing switchCHORUM TECHNOLOGIES INC·Filed 1999·Granted Mar 13, 2001·31 cites·2 claims
- 1969US6115155ASystem for dealing with faults in an optical linkCHORUM TECHNOLOGIES INC·Filed 1998·Granted Sep 5, 2000·28 cites·16 claims
- 2062US6160665AHigh extinction ratio polarization beamsplitterCHORUM TECHNOLOGIES INC·Filed 1999·Granted Dec 12, 2000·25 cites·20 claims
- 2156US6353467B1Acute twist nematic (ATN) liquid crystal device for optical communication applicationsCHORUM TECHNOLOGIES INC·Filed 1999·Granted Mar 5, 2002·18 cites·83 claims
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