Inventor · disambiguated record
Roy D. Crowninshield
Also filed as: BRANCH ANDREW J · CROWNINSHIELD ROY · CROWNINSHIELD ROY D
14 granted patents·1 pending application·925 citations·filing 1978–2010
95Inventor score
Top patents by PatentIndex Score
15 records- 0185US5443512AOrthopaedic implant deviceZIMMER INC·Filed 1993·Granted Aug 22, 1995·251 cites·8 claims
- 0276US5219363ABone implantZIMMER INC·Filed 1989·Granted Jun 15, 1993·102 cites·1 claims
- 0375US4756307ANail deviceZIMMER INC·Filed 1987·Granted Jul 12, 1988·121 cites·12 claims
- 0472US4795472AProsthesis with enhanced surface finishZIMMER INC·Filed 1987·Granted Jan 3, 1989·91 cites·5 claims
- 0570US5192323AMethod of surface hardening orthopedic implant devicesZIMMER INC·Filed 1991·Granted Mar 9, 1993·117 cites·2 claims
- 0660US8748167B2Compact air purifierGREENE WESLEY O·Filed 2010·Granted Jun 10, 2014·5 cites·27 claims
- 0757US5015257AProsthetic interpositional device/couplerZIMMER INC·Filed 1989·Granted May 14, 1991·48 cites·3 claims
- 0856US4175446AStep counting device and methodUNIV IOWA RES FOUND·Filed 1978·Granted Nov 27, 1979·31 cites·10 claims
- 0951US4718912AFemoral component and the method of constructing the sameZIMMER INC·Filed 1985·Granted Jan 12, 1988·39 cites·7 claims
- 1049US5554192AIntramedullary implant stem and centralizerZIMMER INC·Filed 1994·Granted Sep 10, 1996·43 cites·10 claims
- 1146US5326362AMethod of surface hardening orthopedic implant devicesZIMMER INC·Filed 1993·Granted Jul 5, 1994·39 cites·18 claims
- 1243USD339865SCentering cap for a prosthetic hip stemZIMMER INC·Filed 1986·Granted Sep 28, 1993·4 cites·1 claims
- 1343US5066304AProsthetic interpositional device/couplerZIMMER INC·Filed 1991·Granted Nov 19, 1991·34 cites·3 claims
- 1441US2008027559A1Variable stiffness intramedullary stemZIMMER TECH INC·Filed 2006·Application pending·0 cites
- 1536US10070961B2Fully porous prosthetic hip stemHOAG STEPHEN H·Filed 2006·Granted Sep 11, 2018·0 cites·24 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →