Inventor · disambiguated record
Elaine S. Yamaguchi
Also filed as: YAMAGUCHI ELAINE S
22 granted patents·4 pending applications·163 citations·filing 1980–2014
94Inventor score
Top patents by PatentIndex Score
26 records- 0189US7867960B2Method for forming tetraoxy-silane derived antiwear films and lubricating oil compositions therefromCherron Oronite Company LLC·Filed 2006·Granted Jan 11, 2011·16 cites·23 claims
- 0287US8153566B2Lubricating oil compositionsYAMAGUCHI ELAINE S·Filed 2008·Granted Apr 10, 2012·8 cites·24 claims
- 0381US4483775ALubricating oil compositions containing overbased calcium sulfonatesCHEVRON RES·Filed 1982·Granted Nov 20, 1984·25 cites·13 claims
- 0479US8067346B2Tetraoxy-silane lubricating oil compositionsYAMAGUCHI ELAINE S·Filed 2006·Granted Nov 29, 2011·5 cites·18 claims
- 0575US5728656ALower-ash lubricating oil having ultra-neutral zinc dialkyldithiophosphatesCHEVRON CHEM CO·Filed 1997·Granted Mar 17, 1998·27 cites·12 claims
- 0675US4436640AGlycolate dithiophosphoric acids, metal salts thereof and oil compositions containing the saltsCHEVRON RES·Filed 1982·Granted Mar 13, 1984·18 cites·10 claims
- 0773US8716202B2Method for improving fluorocarbon elastomer seal compatibilityYAMAGUCHI ELAINE S·Filed 2010·Granted May 6, 2014·1 cites·27 claims
- 0872US8901050B2Method for improving copper corrosion performanceNELSON KENNETH D·Filed 2010·Granted Dec 2, 2014·1 cites·18 claims
- 0968US8709984B2Lubricating oil compositionsBHALLA GAURAV·Filed 2009·Granted Apr 29, 2014·2 cites·6 claims
- 1067US8084404B2Crankcase lubricating oil composition for protection of silver bearings in locomotive diesel enginesTOBIAS MELANIE F·Filed 2005·Granted Dec 27, 2011·2 cites·24 claims
- 1166US4306984AOil soluble metal (lower) dialkyl dithiophosphate succinimide complex and lubricating oil compositions containing sameCHEVRON RES·Filed 1980·Granted Dec 22, 1981·17 cites·12 claims
- 1260US2010081591A1Lubricating oil compositionsCHEVRON ORONITE CO·Filed 2008·Application pending·0 cites
- 1359US4729848AMetal salts of alkyl catechol dithiophosphoric acids and oil compositions containing the saltsCHEVRON RES·Filed 1986·Granted Mar 8, 1988·10 cites·9 claims
- 1458US2015094244A1Lubricating oil compositionsCHEVRON ORONITE CO·Filed 2014·Application pending·0 cites
- 1556US8969265B2Lubricating oil compositionsCHEVRON ORONITE CO·Filed 2014·Granted Mar 3, 2015·0 cites·10 claims
- 1656US4668409ALubricating oil compositions containing overbased calcium sulfonates and metal salts of alkyl catechol dithiophosphoric acidCHEVRON RES·Filed 1983·Granted May 26, 1987·8 cites·9 claims
- 1756US4487704ALubricating oil compositions containing an overbased calcium sulfonate and a zinc cyclic hydrocarbyl dithiophosphate-succinimide complexCHEVRON RES·Filed 1982·Granted Dec 11, 1984·11 cites·7 claims
- 1856US2011143980A1Lubricating oil compositions containing titanium complexesCHEVRON ORONITE CO·Filed 2009·Application pending·0 cites
- 1955US9315758B2Lubricating oil compositionsYAMAGUCHI ELAINE S·Filed 2008·Granted Apr 19, 2016·0 cites·30 claims
- 2051US9062273B2Lubricating oil compositions containing titanium complexesBHALLA GAURAV·Filed 2012·Granted Jun 23, 2015·0 cites·23 claims
- 2145US8933001B2Method for improving fluorocarbon elastomer seal compatibilityNELSON KENNETH D·Filed 2010·Granted Jan 13, 2015·0 cites·17 claims
- 2243US6001779ALubricating oil composition having an ashless wear inhibitorCHEVRON CHEM CO·Filed 1993·Granted Dec 14, 1999·6 cites·1 claims
- 2342US4443360AOil-soluble zinc cyclic hydrocarbyl dithiophosphate-succinimide complex and lubricating oil compositions containing sameCHEVRON RES·Filed 1982·Granted Apr 17, 1984·6 cites·12 claims
- 2441US9150811B2Method for improving copper corrosion performanceNELSON KENNETH D·Filed 2010·Granted Oct 6, 2015·0 cites·21 claims
- 2540US8993496B2Method for improving fluorocarbon elastomer seal compatibilityNELSON KENNETH D·Filed 2010·Granted Mar 31, 2015·0 cites·15 claims
- 2637US2012247412A1Method for improving fuel economy of a heavy duty diesel engineTOMAN JEFFREY J·Filed 2011·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Elaine S. Yamaguchi files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →