Inventor · disambiguated record
Jean-Louis Le Coent
Also filed as: LE COENT JEAN L · LE COENT JEAN-LOUIS · LE COENT JEAN-LOUIS MARIE
46 granted patents·668 citations·filing 1979–2009
98Inventor score
Top patents by PatentIndex Score
46 records- 0193US6262001B1Unsulfurized, alkali meta-free, additive for lubricating oilsCHEVRON CHEM CO·Filed 2000·Granted Jul 17, 2001·26 cites·8 claims
- 0292US8030258B2Overbased alkaline earth metal alkylhydroxybenzoates having low crude sedimentCHEVRON ORONITE CO·Filed 2005·Granted Oct 4, 2011·15 cites·110 claims
- 0392US6337310B1Alkylbenzene from preisomerized NAO usable in LOB and HOB sulfonateCHEVRON ORONITE CO·Filed 2000·Granted Jan 8, 2002·37 cites·35 claims
- 0491US7183452B2Alkylated aromatic compositions, zeolite catalyst compositions and processes for making the sameCHEVRON ORONITE SA·Filed 2006·Granted Feb 27, 2007·12 cites·34 claims
- 0590US7041863B2Zeolite Y alkylation catalystsCHEVRON ORONITE SA·Filed 2005·Granted May 9, 2006·7 cites·16 claims
- 0689US6479440B1Alkaline earth alkylaryl sulfonates, their application as an additive for lubricating oil, and methods of preparationCHEVRON ORONITE SA·Filed 2001·Granted Nov 12, 2002·32 cites·14 claims
- 0788US6348438B1Production of high BN alkaline earth metal single-aromatic ring hydrocarbyl salicylate-carboxylateCHEVRON ORONITE SA·Filed 1999·Granted Feb 19, 2002·47 cites·30 claims
- 0887US4764295ANon-foaming detergent-dispersant additives for lubricating oils and process for making such additivesOROGIL·Filed 1985·Granted Aug 16, 1988·48 cites·27 claims
- 0985US6977319B2Alkylated aromatic compositions, zeolite catalyst compositions and processes for making the sameCHEVRON ORONITE SA·Filed 2004·Granted Dec 20, 2005·16 cites·16 claims
- 1084US6551967B2Low overbased alkylaryl sulfonatesCHEVRON CHEM SA·Filed 1998·Granted Apr 22, 2003·43 cites·2 claims
- 1183US7479568B2Process for making alkaline earth metal borated sulfonatesCHEVRON ORONITE CO·Filed 2005·Granted Jan 20, 2009·4 cites·17 claims
- 1283US5939594ASuperalkalinized isomerized linear alkylaryl sulfonates of alkaline earth metals, useful as detergent/dispersant additives for lubricating oils, and processes for their preparation and intermediate alkylaryl hydrocarbonFiled 1996·Granted Aug 17, 1999·35 cites·6 claims
- 1382US7071370B2Mordenite zeolite alkylation catalystCHEVRON ORONITE SA·Filed 2005·Granted Jul 4, 2006·5 cites·19 claims
- 1482US6054419AMixture of alkyl-aryl-sulfonates of alkaline earth metals, its application as an additive for lubricating oil, and methods of preparationCHEVRON CHEM CO·Filed 1998·Granted Apr 25, 2000·36 cites·14 claims
- 1580US8293698B2Alkylaryl sulfonate detergent mixture derived from linear olefinsLE COENT JEAN-LOUIS·Filed 2005·Granted Oct 23, 2012·4 cites·23 claims
- 1679US6162770AUnsulfurized alkali metal-free, additive for lubricating oilsCHEVRON CHEM CO·Filed 1999·Granted Dec 19, 2000·31 cites·4 claims
- 1778US4698170AProcess for the preparation of very highly alkaline, calcium-based detergent-dispersant additives and products produced therefromRHONE POULENC RECH·Filed 1984·Granted Oct 6, 1987·25 cites·19 claims
- 1876US7563937B2Zeolite Y alkylation catalystsCHEVRON ORONITE CO·Filed 2006·Granted Jul 21, 2009·2 cites·29 claims
- 1974US7563938B2Alkylated aromatic compositions, zeolite catalyst compositions and processes for making the sameCHEVRON ORONITE CO·Filed 2006·Granted Jul 21, 2009·2 cites·16 claims
- 2074US4251379ADetergent-dispersants of high alkalinity for lubricating oils and process for their preparationOROGIL·Filed 1979·Granted Feb 17, 1981·20 cites·26 claims
- 2173US8778856B2Low temperature performance lubricating oil detergents and method of making the sameCAMPBELL CURTIS BAY·Filed 2009·Granted Jul 15, 2014·2 cites·11 claims
- 2272US6974788B2Zeolite Y alkylation catalystsCHEVRON ORONITE SA·Filed 2004·Granted Dec 13, 2005·8 cites·25 claims
- 2372US6670513B1Process for producing alkylated hydroxyl-containing aromatic compoundsCHEVRON ORONITE CO·Filed 1999·Granted Dec 30, 2003·12 cites·27 claims
- 2471US4302342AProcess for the preparation of detergent dispersants of high alkalinity for lubricating oils and the product obtained therefromOROGIL·Filed 1979·Granted Nov 24, 1981·18 cites·24 claims
- 2570US7951760B2Overbased alkali metal alkylhydroxybenzoates having low crude sedimentCHEVRON ORONITE SA·Filed 2005·Granted May 31, 2011·2 cites·104 claims
- 2670US7109141B2Alkylated aromatic compositions, zeolite catalyst compositions and process for making the sameCHEVRON ORONITE SA·Filed 2005·Granted Sep 19, 2006·1 cites·18 claims
- 2769US4514313AHigh alkalinity sulfurized alkylphenates of alkaline earth metals and method of making sameOROGIL·Filed 1983·Granted Apr 30, 1985·18 cites·26 claims
- 2864US7964611B2Process for making alkaline earth metal borated sulfonatesCHEVRON ORONITE CO·Filed 2008·Granted Jun 21, 2011·0 cites·7 claims
- 2964US5808145ADetergent-dispersant additives for lubricating oils of the sulfurized and superalkalized alkaline earth alkylsalicylate-alkylphenate typeFiled 1995·Granted Sep 15, 1998·20 cites·3 claims
- 3063US7956022B2Low sulfur metal detergent-dispersantsCHEVRON ORONITE CO·Filed 2005·Granted Jun 7, 2011·1 cites·67 claims
- 3161US5529705AMethods for preparing normal and overbased phenatesCHEVRON CHEM CO·Filed 1995·Granted Jun 25, 1996·19 cites·21 claims
- 3261US4293431AProcess of preparing metallic detergent-dispersant additives of high alkalinity in particular for lubricating oils, and product obtained therebyOROGIL·Filed 1979·Granted Oct 6, 1981·13 cites·18 claims
- 3360US6001785ADetergent-dispersant additives for lubricating oils of the sulphurised and superalkalised, alkaline earth alkylsalicylate-alkaylphenate typeCHEVRON CHEM CO·Filed 1998·Granted Dec 14, 1999·16 cites·2 claims
- 3459US6313336B1Synthesis of an overbased detergent from sludge coming from the production of high BN overbased alkylaryl sulfonate or overbased sulfurized alkylphenateCHEVRON ORONITE SA·Filed 2000·Granted Nov 6, 2001·1 cites·15 claims
- 3558US6235688B1Detergent containing lithium metal having improved dispersancy and deposit controlCHEVRON CHEM CO·Filed 1997·Granted May 22, 2001·18 cites·32 claims
- 3655US8188020B2Lubricating oil composition containing an alkali metal detergentLE COENT JEAN-LOUIS·Filed 2003·Granted May 29, 2012·4 cites·19 claims
- 3755US7960324B2Additive composition having low temperature viscosity corrosion and detergent propertiesCHEVRON ORONITE CO·Filed 2004·Granted Jun 14, 2011·2 cites·67 claims
- 3854US6204226B1Mixture of alkyl-phenyl-sulfonates of alkaline earth metals, its application as an additive for lubricating oil, and methods of preparationCHEVRON ORONITE SA·Filed 1999·Granted Mar 20, 2001·15 cites·15 claims
- 3953US4470916AHigh alkalinity metallic detergent-dispersant additives for lubricating oils and method of making sameOROGIL·Filed 1983·Granted Sep 11, 1984·10 cites·26 claims
- 4051US5677270AMethods for preparing normal and overbased phenatesCHEVRON CHEM CO·Filed 1996·Granted Oct 14, 1997·14 cites·25 claims
- 4145US6476282B1Superalkalinized isomerized linear alkylaryl sulfonates of alkaline earth metals, useful as detergent/dispersant additives for lubricating oils, and processes for their preparation and intermediate alkylaryl hydrocarbonCHEVRON CHEM SA·Filed 1999·Granted Nov 5, 2002·5 cites·14 claims
- 4243US6291408B1Detergent-dispersant additives for lubricating oils of the sulphurized and superalkalized alkaline earth alkylsalicylate-alkylphenate typeCHEVRON CHEM CO·Filed 1999·Granted Sep 18, 2001·8 cites·17 claims
- 4342US4464289ASuper-alkalinized detergent-dispersant additives for lubricating oils and method of making sameOROGIL·Filed 1983·Granted Aug 7, 1984·6 cites·20 claims
- 4440US8618029B2Overbased detergents for lubricating oil applicationsLE COENT JEAN-LOUIS·Filed 2003·Granted Dec 31, 2013·0 cites·37 claims
- 4538US6239309B1Synthesis of an overbased detergent from sludge coming from the production high BN overbased alkylaryl sulfonate or overbased sulfurized alkylphenateCHEVRON ORONITE SA·Filed 1999·Granted May 29, 2001·2 cites·15 claims
- 4636US4412927AProcess for the preparation of superalkalinized metallic detergent-dispersants for lubricating oils and products obtained therefromOROGIL CORP·Filed 1982·Granted Nov 1, 1983·6 cites·20 claims
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