Assignee
GEFFROY ROBERT
FR·4 granted patents·105 citations·filing 1974–1989
Top patents by PatentIndex Score
4 records- 0181US4516481APiston and piston rings setGEFFROY ROBERT·Filed 1982·Granted May 14, 1985·36 cites·33 claims
- 0272US4103594APiston and scraper ring assemblyGEFFROY ROBERT·Filed 1974·Granted Aug 1, 1978·25 cites·13 claims
- 0364US4986168APiston and multilayer piston ring setGEFFROY ROBERT·Filed 1989·Granted Jan 22, 1991·26 cites·18 claims
- 0452US4741543APiston scraper ringGEFFROY ROBERT·Filed 1987·Granted May 3, 1988·18 cites·18 claims
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