Inventor · disambiguated record
Kexing Liu
Also filed as: LIU KEXING
19 granted patents·4 pending applications·850 citations·filing 1991–2025
96Inventor score
Files withNORTEL NETWORKS LTD12SHENZHEN THONDAR TECH CO LTD3AI SPECTRAL TECH CORP2NORTEL NETWORKS CORP2HOLLEBONE BRYAN R1
Top patents by PatentIndex Score
23 records- 0198US6084694AWDM optical network with passive pass-through at each nodeNORTEL NETWORKS CORP·Filed 1999·Granted Jul 4, 2000·259 cites·19 claims
- 0296US6892032B2WDM optical network with passive pass-through at each nodeNORTEL NETWORKS LTD·Filed 2002·Granted May 10, 2005·40 cites·9 claims
- 0395US6493117B1WDM optical network with passive pass-through at each nodeNORTEL NETWORKS LTD·Filed 1999·Granted Dec 10, 2002·87 cites·30 claims
- 0493US6748174B2WDM optical network with passive pass-through at each nodeNORTEL NETWORKS LTD·Filed 2002·Granted Jun 8, 2004·25 cites·8 claims
- 0592US6631018B1WDM optical network with passive pass-through at each nodeNORTEL NETWORKS LTD·Filed 1997·Granted Oct 7, 2003·64 cites·20 claims
- 0691US6775479B2WDM optical network with passive pass-through at each nodeNORTEL NETWORKS CORP·Filed 2002·Granted Aug 10, 2004·19 cites·8 claims
- 0788US6529300B1WDM optical network with passive pass-through at each nodeNORTEL NETWORKS LTD·Filed 1999·Granted Mar 4, 2003·43 cites·4 claims
- 0888US5319435AMethod and apparatus for measuring the wavelength of spectrally narrow optical signalsMELLE SERGE M·Filed 1991·Granted Jun 7, 1994·124 cites·16 claims
- 0987US6795652B2WDM optical network with passive pass-through at each nodeNORTEL NETWORKS LTD·Filed 2002·Granted Sep 21, 2004·13 cites·8 claims
- 1086US6751418B2WDM optical network with passive pass-through at each nodeNORTEL NETWORKS LTD·Filed 2002·Granted Jun 15, 2004·12 cites·10 claims
- 1185US5469265AMethod and apparatus for an optoelectronic smart structure interface with wavelength demodulation of laser sensorsFiled 1992·Granted Nov 21, 1995·75 cites·17 claims
- 1284US6563615B2Technique for detecting noise on a data channelNORTEL NETWORKS LTD·Filed 2000·Granted May 13, 2003·14 cites·13 claims
- 1383US6556321B1WDM optical network and switching node with pilot tone communicationsNORTEL NETWORKS LTD·Filed 1999·Granted Apr 29, 2003·32 cites·12 claims
- 1482US6757498B2WDM optical network with passive pass-through at each nodeNORTEL NETWORKS LTD·Filed 2002·Granted Jun 29, 2004·9 cites·8 claims
- 1571US12343080B2Vision testing system and methodOCUXCEL CORP·Filed 2021·Granted Jul 1, 2025·1 cites·19 claims
- 1664US6292290B1Methods and apparatus for adjusting power in an optical signal, for providing a seamless optical ring and for providing a bidirectional equalized amplifierNORTEL NETWORKS LTD·Filed 1999·Granted Sep 18, 2001·31 cites·29 claims
- 1759US11986243B2Fundus cameraSHENZHEN THONDAR TECH CO LTD·Filed 2019·Granted May 21, 2024·2 cites·19 claims
- 1853US2025261851A1Method and apparatus of multi-spectral retinal imaging with wide field of viewAI SPECTRAL TECH CORP·Filed 2025·Application pending·0 cites
- 1950US2025295308A1Ocular disease marker identification using multi-spectral imagingAI SPECTRAL TECH CORP·Filed 2025·Application pending·0 cites
- 2031US2021085176A1Multi-spectral light generating unit, fundus imaging system and methodSHENZHEN THONDAR TECH CO LTD·Filed 2019·Application pending·0 cites
- 2131US2020329962A1Retina digital imaging system, instrument and methodSHENZHEN THONDAR TECH CO LTD·Filed 2018·Application pending·0 cites
- 2230US6433869B1Wavelength measurement by dispersion timingNORTEL NETWORKS LTD·Filed 1999·Granted Aug 13, 2002·0 cites·14 claims
- 2327US8338186B2Method and system for fluid purification and analysisHOLLEBONE BRYAN R·Filed 2010·Granted Dec 25, 2012·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →