Inventor · disambiguated record
John F. Prendergast, Sr.
Also filed as: PRENDERGAST JOHN · PRENDERGAST JOHN F · PRENDERGAST SR JOHN F · PRENDERGAST SR JOHN FRANCIS
10 granted patents·349 citations·filing 1978–2013
91Inventor score
Top patents by PatentIndex Score
10 records- 0193US5052521AStairway wheelchair liftCHENEY COMPANY·Filed 1988·Granted Oct 1, 1991·92 cites·27 claims
- 0292US4904916AElectrical control system for stairway wheelchair liftCHENEY COMPANY·Filed 1988·Granted Feb 27, 1990·61 cites·48 claims
- 0391US4913264AStairway chairlift mechanismCHENEY COMPANY·Filed 1988·Granted Apr 3, 1990·61 cites·23 claims
- 0487US6459265B1Method and apparatus for reducing input impedance of a preamplifierGEN ELECTRIC·Filed 1998·Granted Oct 1, 2002·44 cites·15 claims
- 0586US6369550B1Method and apparatus for reducing input impedance of a preamplifierGEN ELECTRIC·Filed 2000·Granted Apr 9, 2002·33 cites·20 claims
- 0684US4223222ASuspended arm for a scintillation cameraGEN ELECTRIC·Filed 1978·Granted Sep 16, 1980·29 cites·10 claims
- 0746US4602378AX-ray tableGEN ELECTRIC·Filed 1984·Granted Jul 22, 1986·25 cites·15 claims
- 0840USD322362SStairway lift chairTHE CHENEY COMPANY·Filed 1988·Granted Dec 17, 1991·4 cites·1 claims
- 0936US9134032B2Artificial fireplaceBASIC HOLDINGS·Filed 2013·Granted Sep 15, 2015·0 cites·20 claims
- 1029US5168131AApparatus and method for controlling an elevatorCHENEY COMPANY·Filed 1990·Granted Dec 1, 1992·0 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →