Inventor · disambiguated record
Charles Qian
Also filed as: QIAN CHARLES · QIAN CHARLES X W
9 granted patents·10 pending applications·224 citations·filing 1990–2024
88Inventor score
Top patents by PatentIndex Score
19 records- 0187US7410308B2Fiber optic cable spliceALL OPTRONICS INC·Filed 2007·Granted Aug 12, 2008·23 cites·40 claims
- 0287US7215864B1Low-cost portable fiber-optic connector cleanerALL OPTRONICS INC·Filed 2006·Granted May 8, 2007·25 cites·45 claims
- 0387US5128552ASystem and method for power supply preservation in a personal health monitorBUDDY SYSTEMS INC·Filed 1990·Granted Jul 7, 1992·136 cites·22 claims
- 0482US12307919B1Apparatus and method for delivering adaptive educational contentCENGAGE LEARNING INC·Filed 2023·Granted May 20, 2025·1 cites·20 claims
- 0579US7306382B2Mechanical splice optical fiber connectorALL OPTRONICS INC·Filed 2006·Granted Dec 11, 2007·11 cites·20 claims
- 0674US6574049B1Optical interleaver and de-interleaverNEXFON CORP·Filed 2002·Granted Jun 3, 2003·16 cites·35 claims
- 0768US12050880B1System and method for content creationCENGAGE LEARNING INC·Filed 2023·Granted Jul 30, 2024·0 cites·18 claims
- 0865US6386718B1Phase and free spectra range adjustable optical reflectors for dense wavelength division multiplexing applicationsFiled 2001·Granted May 14, 2002·10 cites·21 claims
- 0965US2025209283A1System and method for content creationCENGAGE LEARNING INC·Filed 2024·Application pending·0 cites
- 1048US6692160B2Re-alignable packaging for multi-port fiber optical devicesNEXFON CORP·Filed 2001·Granted Feb 17, 2004·2 cites·8 claims
- 1147US2011132437A1Methods to bond or seal glass pieces of photovoltaic cell modulesKOST ALAN·Filed 2010·Application pending·0 cites
- 1243US2009173385A1Methods to bond or seal glass pieces of photovoltaic cell modulesKOST ALAN·Filed 2008·Application pending·0 cites
- 1342US2003035168A1Spectrum division multiplexing for high channel count optical networksFiled 2001·Application pending·0 cites
- 1441US2009324177A1Fiber optic cable splice and cable reconstructionQIAN CHARLES·Filed 2008·Application pending·0 cites
- 1541US2002003643A1Multi-channel wavelength slicing using an etalon-based interleaver for dense wavelength division multiplexingFiled 2000·Application pending·0 cites
- 1638US2003206346A1Low loss optical cascade devicesFiled 2002·Application pending·0 cites
- 1736US2002126291A1Spectrum division multiplexing for high channel count optical networksFiled 2001·Application pending·0 cites
- 1836US2002197020A1Optical fiber collimator with long working distance and low insertion lossFiled 2001·Application pending·0 cites
- 1935US2002118920A1Multi-port optical filtering glass package and method of manufacture thereofFiled 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →