Inventor · disambiguated record
Efim S. Gorbulev
Also filed as: BRAINMAN FELIX A · GORBULEV EFIM S · IGNATIEV ALEXEI K
4 granted patents·19 citations·filing 1977–1982
71Inventor score
Top patents by PatentIndex Score
4 records- 0132US4173878AMethod of manufacturing tangential expanders for oil control piston ringsGORBULEV EFIM S·Filed 1978·Granted Nov 13, 1979·9 cites·2 claims
- 0225US4408770APiston ring assembly with tangential expanderNEMETS RUSAAM S·Filed 1982·Granted Oct 11, 1983·6 cites·3 claims
- 0318US4175758ATangential expander for oil control piston ringsADAMOVICH ANATOLY V·Filed 1978·Granted Nov 27, 1979·2 cites·1 claims
- 0417US4136718AApparatus for making serpentiform springsIGNATIEV ALEXEI K·Filed 1977·Granted Jan 30, 1979·2 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →