Inventor · disambiguated record
David A. Churchill
Also filed as: CHURCHILL DAVID A
5 granted patents·88 citations·filing 1975–1990
82Inventor score
Top patents by PatentIndex Score
5 records- 0175US4414633AData processing and recording apparatusBRITISH GAS CORP·Filed 1981·Granted Nov 8, 1983·29 cites·3 claims
- 0271US4004660AControl system for hydrokinetic brakesBRITISH RAILWAYS BOARD·Filed 1975·Granted Jan 25, 1977·16 cites·10 claims
- 0369US4756688AApparatus and method for the flow control of flue gas to combustion air in a regenerative heating systemBRITISH GAS PLC·Filed 1987·Granted Jul 12, 1988·12 cites·7 claims
- 0450US5123288AAveraging pitot probeBRITISH GAS PLC·Filed 1990·Granted Jun 23, 1992·19 cites·18 claims
- 0544US4911007AFlowmeterBRITISH GAS PLC·Filed 1988·Granted Mar 27, 1990·12 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →