Inventor · disambiguated record
John T. Loper
Also filed as: LOPER JOHN · LOPER JOHN T
56 granted patents·22 pending applications·994 citations·filing 1993–2019
98Inventor score
Files withAFTON CHEMICAL CORP46LOPER JOHN T10ETHYL CORP9DEVLIN MARK T3AFTON CHEMICAL INTANGIBLES LLC2
Top patents by PatentIndex Score
78 records- 0199US8048831B2Dispersant reaction product with antioxidant capabilityAFTON CHEMICAL CORP·Filed 2008·Granted Nov 1, 2011·133 cites·24 claims
- 0299US7645726B2Dispersant reaction product with antioxidant capabilityAFTON CHEMICAL CORP·Filed 2004·Granted Jan 12, 2010·135 cites·16 claims
- 0398US7214649B2Hydrocarbyl dispersants including pendant polar functional groupsAFTON CHEMICAL CORP·Filed 2003·Granted May 8, 2007·140 cites·31 claims
- 0498US6548458B2Succinimide-acid compounds and derivatives thereofETHYL CORP·Filed 2001·Granted Apr 15, 2003·103 cites·82 claims
- 0596US7897696B2Process for the preparation of polyalkenyl succinic anhydridesAFTON CHEMICAL CORP·Filed 2007·Granted Mar 1, 2011·151 cites·21 claims
- 0696US7491248B2Fuels compositions and methods for using sameAFTON CHEMICAL CORP·Filed 2003·Granted Feb 17, 2009·57 cites·19 claims
- 0795US6528463B1Oil soluble molybdenum compositionsETHYL CORP·Filed 2000·Granted Mar 4, 2003·54 cites·50 claims
- 0894US7863228B2Additives for lubricants and fuelsAFTON CHEMICAL CORP·Filed 2008·Granted Jan 4, 2011·20 cites·28 claims
- 0991US10221267B2Microstructure-controlled copolymers of ethylene and C3-C10 alpha-olefinsAFTON CHEMICAL CORP·Filed 2016·Granted Mar 5, 2019·4 cites·22 claims
- 1091US7766982B2Fuels compositions and methods for using sameAFTON CHEMICAL CORP·Filed 2006·Granted Aug 3, 2010·10 cites·2 claims
- 1187US9279094B2Friction modifiers for use in lubricating oil compositionsAFTON CHEMICAL CORP·Filed 2012·Granted Mar 8, 2016·5 cites·35 claims
- 1285US9663743B2Lubricating method and composition for reducing engine depositsGRIFFIN PAUL G·Filed 2009·Granted May 30, 2017·7 cites·8 claims
- 1384US7361629B2Additives for lubricants and fuelsAFTON CHEMICAL CORP·Filed 2004·Granted Apr 22, 2008·22 cites·6 claims
- 1483US8822392B1Friction modifiers for lubricating oilsAFTON CHEMICAL CORP·Filed 2013·Granted Sep 2, 2014·3 cites·7 claims
- 1583US7696138B2Alkyl acrylate copolymer dispersants and uses thereofAFTON CHEMICAL CORP·Filed 2007·Granted Apr 13, 2010·6 cites·40 claims
- 1680US8728995B2Process for the preparation of polyalkenyl succinic anhydridesHUANG CHENTE·Filed 2011·Granted May 20, 2014·5 cites·10 claims
- 1779US9249371B2Additive compositions with a friction modifier and a dispersantAFTON CHEMICAL CORP·Filed 2012·Granted Feb 2, 2016·2 cites·30 claims
- 1879US6767871B2Diesel engine lubricantsETHYL CORP·Filed 2002·Granted Jul 27, 2004·17 cites·28 claims
- 1978US10584297B2Polyolefin-derived dispersantsAFTON CHEMICAL CORP·Filed 2016·Granted Mar 10, 2020·1 cites·24 claims
- 2078US7182795B2Fuel lubricity additives derived from hydrocarbyl succinic anhydrides and hydroxy amines, and middle distillate fuels containing sameAFTON CHEMICAL INTANGIBLES LLC·Filed 2002·Granted Feb 27, 2007·11 cites·14 claims
- 2176US8927471B1Friction modifiers for engine oilsAFTON CHEMICAL CORP·Filed 2013·Granted Jan 6, 2015·1 cites·20 claims
- 2276US7879775B2Lubricant compositionsAFTON CHEMICAL CORP·Filed 2006·Granted Feb 1, 2011·3 cites·30 claims
- 2374US7897552B2Additives and lubricant formulations for improved antioxidant propertiesAFTON CHEMICAL CORP·Filed 2007·Granted Mar 1, 2011·4 cites·19 claims
- 2473US8211840B2Additives and lubricant formulations for improved antiwear propertiesDEVLIN MARK T·Filed 2008·Granted Jul 3, 2012·3 cites·19 claims
- 2572US11091613B2Microstructure-controlled copolymers of ethylene and C3-C10 alpha-olefinsAFTON CHEMICAL CORP·Filed 2019·Granted Aug 17, 2021·0 cites·19 claims
- 2670US9550955B2Friction modifiers for lubricating oilsAFTON CHEMICAL CORP·Filed 2012·Granted Jan 24, 2017·1 cites·28 claims
- 2770US9296971B2Friction modifiers for lubricating oilsAFTON CHEMICAL CORP·Filed 2014·Granted Mar 29, 2016·1 cites·22 claims
- 2870US9193932B2Amide alcohol friction modifiers for lubricating oilsAFTON CHEMICAL CORP·Filed 2013·Granted Nov 24, 2015·1 cites·29 claims
- 2970US8349778B2Lubricating compositions having improved friction propertiesAFTON CHEMICAL CORP·Filed 2007·Granted Jan 8, 2013·2 cites·11 claims
- 3068US9499762B2Additive compositions with a friction modifier and a detergentAFTON CHEMICAL CORP·Filed 2012·Granted Nov 22, 2016·1 cites·32 claims
- 3168US8207099B2Lubricating oil composition for crankcase applicationsLOPER JOHN T·Filed 2009·Granted Jun 26, 2012·2 cites·14 claims
- 3268US7879774B2Titanium-containing lubricating oil compositionAFTON CHEMICAL CORP·Filed 2006·Granted Feb 1, 2011·2 cites·37 claims
- 3368US7645728B2Lubricant and fuel additives derived from treated aminesAFTON CHEMICAL CORP·Filed 2004·Granted Jan 12, 2010·6 cites·38 claims
- 3468US2021171678A1Microstructure-controlled copolymers of ethylene and c3-c10 alpha-olefinsAFTON CHEMICAL CORP·Filed 2018·Application pending·0 cites
- 3567US9499763B2Additive compositions with plural friction modifiersAFTON CHEMICAL CORP·Filed 2012·Granted Nov 22, 2016·1 cites·30 claims
- 3667US8980804B2Alkyl acrylate copolymer dispersants and uses thereofLOPER JOHN T·Filed 2006·Granted Mar 17, 2015·2 cites·18 claims
- 3767US7960321B2Oil-soluble molybdenum derivatives derived from hydroxyethyl-substituted Mannich basesAFTON CHEMICAL CORP·Filed 2008·Granted Jun 14, 2011·1 cites·30 claims
- 3867US2015065408A1Lubricant compositions for direct injection enginesAFTON CHEMICAL CORP·Filed 2014·Application pending·0 cites
- 3966US6800596B1Lubricating oil dispersantAFTON CHEMICAL INTANGIBLES LLC·Filed 2003·Granted Oct 5, 2004·5 cites·49 claims
- 4066US5597390AAmine ester-containing additives and methods of making and using sameETHYL CORP·Filed 1995·Granted Jan 28, 1997·21 cites·32 claims
- 4165US2019177518A1Low-metal content ethylene-alpha olefin copolymers and functionalized products made therefromAFTON CHEMICAL CORP·Filed 2018·Application pending·0 cites
- 4263US8048834B2Additives and lubricant formulations for improved catalyst performanceAFTON CHEMICAL CORP·Filed 2007·Granted Nov 1, 2011·1 cites·25 claims
- 4362US9499764B2Additive compositions with a friction modifier and a dispersantAFTON CHEMICAL CORP·Filed 2016·Granted Nov 22, 2016·0 cites·17 claims
- 4461US2008026964A1Alkyl acrylate copolymer vi modifiers and uses thereofAFTON CHEMICAL CORP·Filed 2007·Application pending·0 cites
- 4561US2021070900A1Polyolefin-derived dispersantsAFTON CHEMICAL CORP·Filed 2018·Application pending·0 cites
- 4659US11046908B2Oxazoline modified dispersantsAFTON CHEMICAL CORP·Filed 2019·Granted Jun 29, 2021·0 cites·29 claims
- 4759US11008527B2Engine oils for soot handling and friction reductionAFTON CHEMICAL CORP·Filed 2019·Granted May 18, 2021·0 cites·12 claims
- 4859US2018223017A1Isomerization of polyisobutyleneAFTON CHEMICAL CORP·Filed 2018·Application pending·0 cites
- 4957US8299003B2Composition 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
- 5057US7875747B2Branched succinimide dispersant compounds and methods of making the compoundsAFTON CHEMICAL CORP·Filed 2006·Granted Jan 25, 2011·0 cites·26 claims
Showing the top 50 of 78 patent records by PatentIndex Score.
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