Inventor · disambiguated record
Roger M. Sheets
Also filed as: SHEETS ROGER · SHEETS ROGER M
21 granted patents·12 pending applications·241 citations·filing 2001–2013
93Inventor score
Top patents by PatentIndex Score
33 records- 0198US7214649B2Hydrocarbyl dispersants including pendant polar functional groupsAFTON CHEMICAL CORP·Filed 2003·Granted May 8, 2007·140 cites·31 claims
- 0291US6800103B2Secondary amine mannich detergentsETHYL CORP·Filed 2001·Granted Oct 5, 2004·43 cites·51 claims
- 0385US7368596B2Process for producing zinc dialkyldithiophosphates exhibiting improved seal compatibility propertiesAFTON CHEMICAL CORP·Filed 2003·Granted May 6, 2008·19 cites·8 claims
- 0483US6844300B2Low phosphorus clean gear formulationsETHYL CORP·Filed 2002·Granted Jan 18, 2005·29 cites·21 claims
- 0576US7879775B2Lubricant compositionsAFTON CHEMICAL CORP·Filed 2006·Granted Feb 1, 2011·3 cites·30 claims
- 0673US8211840B2Additives and lubricant formulations for improved antiwear propertiesDEVLIN MARK T·Filed 2008·Granted Jul 3, 2012·3 cites·19 claims
- 0770US8349778B2Lubricating compositions having improved friction propertiesAFTON CHEMICAL CORP·Filed 2007·Granted Jan 8, 2013·2 cites·11 claims
- 0869US8877956B21,3,2-dioxaphosphorinane, 2-sulfide derivatives for use as anti-wear additives in lubricant compositionsAFTON CHEMICAL CORP·Filed 2013·Granted Nov 4, 2014·0 cites·2 claims
- 0967US8618030B21,3,2-dioxaphosphorinane, 2-sulfide derivatives for use as anti-wear additives in lubricant compositionsAFTON CHEMICAL CORP·Filed 2013·Granted Dec 31, 2013·0 cites·9 claims
- 1062US7737094B2Engine wear protection in engines operated using ethanol-based fuelAFTON CHEMICAL CORP·Filed 2007·Granted Jun 15, 2010·0 cites·8 claims
- 1160US8871696B21,3,2-dioxaphosphorinane, 2-sulfide derivatives for use as anti-wear additives in lubricant compositionsAFTON CHEMICAL CORP·Filed 2013·Granted Oct 28, 2014·0 cites·2 claims
- 1259US8466096B21,3,2-dioxaphosphorinane, 2-sulfide derivatives for use as anti-wear additives in lubricant compositionsBAKER JOHN MARSHALL·Filed 2008·Granted Jun 18, 2013·1 cites·11 claims
- 1358US8853422B2Pyrrolidine-2,5-dione derivatives for use in friction modificationAFTON CHEMICAL CORP·Filed 2013·Granted Oct 7, 2014·0 cites·4 claims
- 1457US8299003B2Composition comprising a sulfur-containing, phosphorus-containing compound, and/or its salt, and uses thereofDEGONIA DAVID J·Filed 2006·Granted Oct 30, 2012·1 cites·18 claims
- 1557US7592490B2Process for producing zinc dialkyldithiophosphates exhibiting improved seal compatibility propertiesAFTON CHEMICAL CORP·Filed 2007·Granted Sep 22, 2009·0 cites·10 claims
- 1656US8198221B2Engine wear protection in engines operated using ethanol-based fuelGUINTHER GREGORY H·Filed 2010·Granted Jun 12, 2012·0 cites·7 claims
- 1756US7928260B2Salt of a sulfur-containing, phosphorus-containing compound, and methods thereofAFTON CHEMICAL CORP·Filed 2008·Granted Apr 19, 2011·0 cites·2 claims
- 1854US2010056407A1Lubricant formulations and methods of lubricating a combustion system to achieve improved emmisions catalyst durabilityAFTON CHEMICAL CORP·Filed 2008·Application pending·0 cites
- 1950US2008305972A1Lubricant compositionsDEVLIN MARK T·Filed 2007·Application pending·0 cites
- 2049US8624038B2Pyrrolidine-2,5-dione derivatives for use in friction modificationSHEETS ROGER·Filed 2008·Granted Jan 7, 2014·0 cites·17 claims
- 2148US2006196107A1Cyclic mannich productsMALFER DENNIS J·Filed 2005·Application pending·0 cites
- 2248US2008125336A1Lubricant formulations and methods for improved exhaust catalyst performanceLOPER JOHN T·Filed 2006·Application pending·0 cites
- 2347US8709985B2Lubricant compositionDEVLIN MARK T·Filed 2006·Granted Apr 29, 2014·0 cites·8 claims
- 2447US2007105729A1Gear additive compositionHEWETTE CHIP·Filed 2006·Application pending·0 cites
- 2545US2008280794A1Compositions comprising at least one friction modifying compound, and methods of use thereofHEWETTE CHIP·Filed 2008·Application pending·0 cites
- 2644US2008125338A1Food grade lubricant compositionsCORBETT PATRICIA M·Filed 2006·Application pending·0 cites
- 2743US7208452B2Process for manufacturing alkylphosphonate monoestersAFTON CHEMICAL INTANGIBLES LLC·Filed 2003·Granted Apr 24, 2007·0 cites·3 claims
- 2843US2006252660A1Hydrolytically stable viscosity index improvesDUGGAL AKHILESH·Filed 2005·Application pending·0 cites
- 2942US2007142660A1Salt of a sulfur-containing, phosphorus-containing compound, and methods thereofDEGONIA DAVID J·Filed 2006·Application pending·0 cites
- 3040US2007142248A1Lubricant compositionDEGONLA DAVID J·Filed 2006·Application pending·0 cites
- 3140US2007142237A1Lubricant compositionDEGONIA DAVID J·Filed 2006·Application pending·0 cites
- 3238US7888299B2Extended drain, thermally stable, gear oil formulationsAFTON CHEMICAL JAPAN CORP·Filed 2004·Granted Feb 15, 2011·0 cites·10 claims
- 3333US2007142659A1Sulfur-containing, phosphorus-containing compound, its salt, and methods thereofDEGONIA DAVID J·Filed 2006·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →