Inventor
KNOLL WILLIAM C
18 patents
⚠️ This page may combine multiple inventors who share the name “KNOLL WILLIAM C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GTE PROD CORP
8 patentsUS4353009AOct 5, 1982
Dimming circuit for an electronic ballast
GTE PROD CORP77 citations96
US4931664AJun 5, 1990
Controller for coded surface acoustical wave (SAW) security system
GTE PROD CORP27 citations92
US4392085AJul 5, 1983
Direct drive ballast with delayed starting circuit
GTE PROD CORP29 citations92
US4525649AJun 25, 1985
Drive scheme for a plurality of flourescent lamps
GTE PROD CORP21 citations81
US4532456AJul 30, 1985
Output circuit for an electronic ballast system
GTE PROD CORP9 citations73
US4396866AAug 2, 1983
Lamp filament drive scheme providing for control of filament voltages by use of lamp current in solid state ballasts
GTE PROD CORP12 citations73
US4353010AOct 5, 1982
Transistor drive scheme for fluorscent lamp ballast
GTE PROD CORP9 citations73
US4802859AFeb 7, 1989
Electrical connector
GTE PROD CORP15 citations69
GTE SYLVANIA INC
5 patentsUS4127795ANov 28, 1978
Lamp ballast circuit
GTE SYLVANIA INC57 citations96
US4109307AAug 22, 1978
High power factor conversion circuitry
GTE SYLVANIA INC85 citations96
US4199710AApr 22, 1980
Ballast circuit for high intensity discharge (HID) lamps
GTE SYLVANIA INC21 citations82
US4188660AFeb 12, 1980
Direct drive ballast circuit
GTE SYLVANIA INC20 citations82
US4158156AJun 12, 1979
Electron ballast apparatus for gaseous discharge lamps
GTE SYLVANIA INC9 citations73