Inventor · disambiguated record
Donald C. Simpson
Also filed as: SIMPSON DONALD C · SIMPSON DONALD L
7 granted patents·1 pending application·117 citations·filing 1976–2005
86Inventor score
Top patents by PatentIndex Score
8 records- 0177US5257639AElectropneumatic positionerDRESSER IND·Filed 1992·Granted Nov 2, 1993·40 cites·54 claims
- 0264US5159949AElectropneumatic positionerDRESSER IND·Filed 1991·Granted Nov 3, 1992·25 cites·53 claims
- 0361US4118977AElectric signal transmitter for vibrating-wire sensorFOXBORO CO·Filed 1976·Granted Oct 10, 1978·14 cites·32 claims
- 0459US4527583AElectropneumatic transducer systemDRESSER IND·Filed 1983·Granted Jul 9, 1985·18 cites·18 claims
- 0558US4165652AVibratable-wire instrument having an improved temperature compensating techniqueCROIX JAMES R·Filed 1978·Granted Aug 28, 1979·14 cites·16 claims
- 0644US2007079563A1Window shadow and skirting system for manufactured and mobile homesSIMPSON DONALD L·Filed 2005·Application pending·0 cites
- 0736USD291917SDisposable cushion pad for intra-oral X-ray filmsSIMPSON DONALD C·Filed 1985·Granted Sep 15, 1987·3 cites·1 claims
- 0836USD290652SCushion pad for intra-oral X-ray filmsSIMPSON DONALD C·Filed 1985·Granted Jun 30, 1987·3 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →