Inventor · disambiguated record
Joseph P. O'Brien
Also filed as: O'BRIEN JOSEPH P · PAPAY ANDREW G
13 granted patents·330 citations·filing 1977–1988
93Inventor score
Technology areasC10M
Top patents by PatentIndex Score
13 records- 0194US4147640ALubricant compositionCOOPER & CO LTD EDWIN·Filed 1977·Granted Apr 3, 1979·78 cites·24 claims
- 0293US4204969ALubricant composition containing sulfurized olefin extreme pressure additiveCOOPER EDWIN INC·Filed 1978·Granted May 27, 1980·62 cites·11 claims
- 0392US4505834ALubricating oil compositions containing graft copolymer as viscosity index improver-dispersantCOOPER EDWIN INC·Filed 1980·Granted Mar 19, 1985·55 cites·16 claims
- 0485US4293432ALubricating oil compositionETHYL CORP·Filed 1979·Granted Oct 6, 1981·30 cites·8 claims
- 0580US4855074AHomogeneous additive concentrates and their formationETHYL PETROLEUM ADDITIVES INC·Filed 1988·Granted Aug 8, 1989·31 cites·39 claims
- 0671US4325827AFuel and lubricating compositions containing N-hydroxymethyl succinimidesCOOPER EDWIN INC·Filed 1981·Granted Apr 20, 1982·19 cites·8 claims
- 0770US4519929ALubricating oil composition containing N-allyl amide graft copolymersCOOPER EDWIN INC·Filed 1982·Granted May 28, 1985·19 cites·31 claims
- 0861US4331545ALubricating compositions containing boronated N-alkanol hydrocarbylamideCOOPER EDWIN INC·Filed 1980·Granted May 25, 1982·14 cites·12 claims
- 0960US4295983ALubricating oil composition containing boronated N-hydroxymethyl succinimide friction reducersETHYL CORP·Filed 1980·Granted Oct 20, 1981·13 cites·16 claims
- 1037US4237020ALubricating and fuel compositions containing succinimide friction reducersCOOPER EDWIN INC·Filed 1979·Granted Dec 2, 1980·3 cites·10 claims
- 1135US4448974APolyalkylene succinimide lubricant additivesCOOPER EDWIN INC·Filed 1982·Granted May 15, 1984·3 cites·24 claims
- 1234US4246125ALubricating oil and fuel compositionCOOPER EDWIN INC·Filed 1979·Granted Jan 20, 1981·2 cites·12 claims
- 1332US4225449ALubricating oil and fuel compositionsCOOPER EDWIN INC·Filed 1979·Granted Sep 30, 1980·1 cites·22 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →