Inventor

SPREADBURY ROBERT J

US6 patents

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

WESTINGHOUSE ELECTRIC CORP

4 patents

US4030058AJun 14, 1977

Inductive coupler

WESTINGHOUSE ELECTRIC CORP92 citations94

US4350934ASep 21, 1982

Discharge device ballast component which provides both voltage transformation and variable inductive reactance

WESTINGHOUSE ELECTRIC CORP21 citations80

US4286207AAug 25, 1981

High-power AC voltage stabilizer

WESTINGHOUSE ELECTRIC CORP27 citations75

US4455595AJun 19, 1984

Packaged add-on device for lead-type ballast and luminaire which incorporates such packaged add-on device

WESTINGHOUSE ELECTRIC CORP2 citations59

COOPER IND INC

1 patent

US4501994AFeb 26, 1985

Ballast modifying device and lead-type ballast for programming and controlling the operating performance of an hid sodium lamp

COOPER IND INC63 citations94

PHILIPS LIGHTING CORP

1 patent

US4525650AJun 25, 1985

Starting and operating method and apparatus for discharge lamps

PHILIPS LIGHTING CORP25 citations81