Inventor · disambiguated record
Timothy Chen
Also filed as: CHEN TIMOTHY · CHEN TIMOTHY E
28 granted patents·1 pending application·566 citations·filing 1999–2022
97Inventor score
Top patents by PatentIndex Score
29 records- 0195US6218788B1Floating IC driven dimming ballastGEN ELECTRIC·Filed 1999·Granted Apr 17, 2001·172 cites·19 claims
- 0292US6417631B1Integrated bridge inverter circuit for discharge lightingGEN ELECTRIC·Filed 2001·Granted Jul 9, 2002·78 cites·11 claims
- 0389US8487551B1Ultra-high efficiency ballast with end of lamp life protectionCHEN TIMOTHY·Filed 2010·Granted Jul 16, 2013·13 cites·20 claims
- 0486US7315130B1Switching control for inverter startup and shutdownGEN ELECTRIC·Filed 2006·Granted Jan 1, 2008·15 cites·20 claims
- 0586US7247991B2Dimming ballast and methodGEN ELECTRIC·Filed 2005·Granted Jul 24, 2007·15 cites·29 claims
- 0685US6339298B1Dimming ballast resonant feedback circuitGEN ELECTRIC·Filed 2000·Granted Jan 15, 2002·72 cites·20 claims
- 0783US7327101B1Single point sensing for end of lamp life, anti-arcing, and no-load protection for electronic ballastGEN ELECTRIC·Filed 2006·Granted Feb 5, 2008·28 cites·20 claims
- 0882US7075251B2Universal platform for phase dimming discharge lighting ballast and lampGEN ELECTRIC·Filed 2003·Granted Jul 11, 2006·29 cites·32 claims
- 0982US6348767B1Electronic ballast with continued conduction of line currentGEN ELECTRIC·Filed 2000·Granted Feb 19, 2002·38 cites·14 claims
- 1078US6411524B1Dual planar printed wiring board for compact fluorescent lampGEN ELECTRIC·Filed 2000·Granted Jun 25, 2002·14 cites·5 claims
- 1177US7759880B2Combined ballast for fluorescent lamp and light emitting diode and method of driving sameGEN ELECTRIC·Filed 2008·Granted Jul 20, 2010·6 cites·19 claims
- 1275US6459214B1High frequency/high power factor inverter circuit with combination cathode heatingGEN ELECTRIC·Filed 2001·Granted Oct 1, 2002·20 cites·14 claims
- 1374US7923941B2Low cost compact size single stage high power factor circuit for discharge lampsGEN ELECTRIC·Filed 2008·Granted Apr 12, 2011·6 cites·20 claims
- 1470US6831423B2High Q impedance matching inverter circuit with automatic line regulationGEN ELECTRIC·Filed 2003·Granted Dec 14, 2004·14 cites·20 claims
- 1569US7193368B2Parallel lamps with instant program start electronic ballastGEN ELECTRIC·Filed 2004·Granted Mar 20, 2007·13 cites·27 claims
- 1664US7830096B2Circuit with improved efficiency and crest factor for current fed bipolar junction transistor (BJT) based electronic ballastGEN ELECTRIC·Filed 2007·Granted Nov 9, 2010·2 cites·14 claims
- 1764US7601960B2Control for UV water disinfectionGEN ELECTRIC·Filed 2006·Granted Oct 13, 2009·4 cites·17 claims
- 1861US2024282942A1Aluminum-based anode for lithium-ion batteriesNOVELIS INC·Filed 2022·Application pending·0 cites
- 1960US7944155B2LED driver with single inverter circuit with isolated multi-channel outputsGEN ELECTRIC·Filed 2008·Granted May 17, 2011·1 cites·18 claims
- 2057US6653800B2Ballast circuit with lamp cathode protection and ballast protectionGEN ELECTRIC·Filed 2001·Granted Nov 25, 2003·7 cites·16 claims
- 2155US7733028B2Method and system for eliminating DC bias on electrolytic capacitors and shutdown detecting circuit for current fed ballastGEN ELECTRIC·Filed 2007·Granted Jun 8, 2010·1 cites·14 claims
- 2254US7948191B2Parallel transformer with output side electrical decouplingGEN ELECTRIC·Filed 2008·Granted May 24, 2011·0 cites·18 claims
- 2353US6841951B2Single stage HID electronic ballastGEN ELECTRIC·Filed 2002·Granted Jan 11, 2005·5 cites·16 claims
- 2452US6936970B2Method and apparatus for a unidirectional switching, current limited cutoff circuit for an electronic ballastGEN ELECTRIC·Filed 2003·Granted Aug 30, 2005·5 cites·20 claims
- 2551US6677718B2HID electronic ballast with glow to arc and warm-up controlGEN ELECTRIC·Filed 2002·Granted Jan 13, 2004·4 cites·13 claims
- 2647US7382099B2Striation control for current fed electronic ballastGEN ELECTRIC·Filed 2004·Granted Jun 3, 2008·3 cites·21 claims
- 2745US8487541B2Method to ensure ballast starting regardless of half cycle inputROBERTS BRUCE·Filed 2010·Granted Jul 16, 2013·0 cites·17 claims
- 2845US7420336B2Method of controlling cathode voltage with low lamp's arc currentGEN ELECTRIC·Filed 2005·Granted Sep 2, 2008·0 cites·13 claims
- 2932US6989637B2Method and apparatus for a voltage controlled start-up circuit for an electronic ballastGEN ELECTRIC·Filed 2003·Granted Jan 24, 2006·1 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →