Inventor · disambiguated record
Robert J. Spreadbury
Also filed as: SPREADBURY ROBERT J
6 granted patents·230 citations·filing 1976–1984
86Inventor score
Top patents by PatentIndex Score
6 records- 0195US4030058AInductive couplerWESTINGHOUSE ELECTRIC CORP·Filed 1976·Granted Jun 14, 1977·92 cites·1 claims
- 0289US4501994ABallast modifying device and lead-type ballast for programming and controlling the operating performance of an hid sodium lampCOOPER IND INC·Filed 1983·Granted Feb 26, 1985·63 cites·24 claims
- 0370US4525650AStarting and operating method and apparatus for discharge lampsPHILIPS LIGHTING CORP·Filed 1984·Granted Jun 25, 1985·25 cites·10 claims
- 0469US4286207AHigh-power AC voltage stabilizerWESTINGHOUSE ELECTRIC CORP·Filed 1980·Granted Aug 25, 1981·27 cites·11 claims
- 0563US4350934ADischarge device ballast component which provides both voltage transformation and variable inductive reactanceWESTINGHOUSE ELECTRIC CORP·Filed 1980·Granted Sep 21, 1982·21 cites·8 claims
- 0627US4455595APackaged add-on device for lead-type ballast and luminaire which incorporates such packaged add-on deviceWESTINGHOUSE ELECTRIC CORP·Filed 1982·Granted Jun 19, 1984·2 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →