Inventor · disambiguated record
Donald Edwin Hargraves
Also filed as: HARGRAVES DONALD E · HARGRAVES DONALD EDWIN
5 granted patents·1 pending application·123 citations·filing 1977–2010
81Inventor score
Top patents by PatentIndex Score
6 records- 0193US4102526ASolenoid valveHARGRAVES DONALD E·Filed 1977·Granted Jul 25, 1978·88 cites·2 claims
- 0284US8096043B2Method of assembling a pump motor and preloading bearings of the motorHARGRAVES DONALD EDWIN·Filed 2010·Granted Jan 17, 2012·15 cites·5 claims
- 0359US7762796B2Pump valve with controlled strokeHARGRAVES TECHNOLOGY CORP·Filed 2004·Granted Jul 27, 2010·8 cites·12 claims
- 0455US8393346B2Solenoid valve and method of assembly thereofCURTIS DOUGLAS ALLAN·Filed 2005·Granted Mar 12, 2013·4 cites·4 claims
- 0536US2006181168A1Pump motor with bearing preloadHARGRAVES DONALD E·Filed 2004·Application pending·0 cites
- 0634US4125278APlug-in connectorHARGRAVES DONALD E·Filed 1977·Granted Nov 14, 1978·8 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →