P

Inventor

CHEN TIMOTHY

US75 patents
⚠️ This page may combine multiple inventors who share the name “CHEN TIMOTHY”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

GEN ELECTRIC

19 patents
US6218788B1Apr 17, 2001

Floating IC driven dimming ballast

GEN ELECTRIC172 citations99
US6417631B1Jul 9, 2002

Integrated bridge inverter circuit for discharge lighting

GEN ELECTRIC78 citations96
US6339298B1Jan 15, 2002

Dimming ballast resonant feedback circuit

GEN ELECTRIC72 citations96
US6348767B1Feb 19, 2002

Electronic ballast with continued conduction of line current

GEN ELECTRIC38 citations93
US7075251B2Jul 11, 2006

Universal platform for phase dimming discharge lighting ballast and lamp

GEN ELECTRIC29 citations92
US6459214B1Oct 1, 2002

High frequency/high power factor inverter circuit with combination cathode heating

GEN ELECTRIC20 citations90
US7327101B1Feb 5, 2008

Single point sensing for end of lamp life, anti-arcing, and no-load protection for electronic ballast

GEN ELECTRIC28 citations88
US7315130B1Jan 1, 2008

Switching control for inverter startup and shutdown

GEN ELECTRIC15 citations84
US7193368B2Mar 20, 2007

Parallel lamps with instant program start electronic ballast

GEN ELECTRIC13 citations84
US6831423B2Dec 14, 2004

High Q impedance matching inverter circuit with automatic line regulation

GEN ELECTRIC14 citations84
US6411524B1Jun 25, 2002

Dual planar printed wiring board for compact fluorescent lamp

GEN ELECTRIC14 citations84
US7247991B2Jul 24, 2007

Dimming ballast and method

GEN ELECTRIC15 citations83
US6653800B2Nov 25, 2003

Ballast circuit with lamp cathode protection and ballast protection

GEN ELECTRIC7 citations74
US7830096B2Nov 9, 2010

Circuit with improved efficiency and crest factor for current fed bipolar junction transistor (BJT) based electronic ballast

GEN ELECTRIC2 citations63
US6841951B2Jan 11, 2005

Single stage HID electronic ballast

GEN ELECTRIC5 citations62
US6677718B2Jan 13, 2004

HID electronic ballast with glow to arc and warm-up control

GEN ELECTRIC4 citations62
US7759880B2Jul 20, 2010

Combined ballast for fluorescent lamp and light emitting diode and method of driving same

GEN ELECTRIC6 citations61
US7382099B2Jun 3, 2008

Striation control for current fed electronic ballast

GEN ELECTRIC3 citations60
US7923941B2Apr 12, 2011

Low cost compact size single stage high power factor circuit for discharge lamps

GEN ELECTRIC6 citations59

CHEN TIMOTHY

10 patents

GOOGLE INC

5 patents

GOOGLE LLC

4 patents

UNIV COLUMBIA

2 patents

SYSTEMS AND SERVICES INTERNATI

1 patent

DURACRAFT CORP

1 patent

CAIRNS DUSTIN

1 patent

SARGENT DONALD A

1 patent

MARVELL INT LTD

1 patent

TECHNICAL CONSUMER PRODUCTS INC

1 patent

MACK ROBERT

1 patent

HUSSEY ANDREW

1 patent

HAAS DANIEL ALBERT

1 patent

SERENETE CORP

1 patent

Showing the top 50 of 75 patents by PatentIndex Score.