Inventor · disambiguated record
Richard D. Schieman
Also filed as: SCHIEMAN RICHARD D
5 granted patents·34 citations·filing 1975–1984
77Inventor score
Top patents by PatentIndex Score
5 records- 0156US4402841AExtended service 5W-40 motor oilSTANDARD OIL CO OHIO·Filed 1982·Granted Sep 6, 1983·13 cites·36 claims
- 0256US4164475AMulti-grade 80W-140 gear oilSTANDARD OIL CO OHIO·Filed 1975·Granted Aug 14, 1979·8 cites·1 claims
- 0347US4717489AHeavy duty diesel engine oil blendSTANDARD OIL CO·Filed 1984·Granted Jan 5, 1988·10 cites·4 claims
- 0427US3977964AStabilization of hydrocracked lube oilsSTANDARD OIL CO·Filed 1975·Granted Aug 31, 1976·1 cites·5 claims
- 0523US4234409AProcess for the production of lubricating blend stocksSTANDARD OIL CO·Filed 1979·Granted Nov 18, 1980·2 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →