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Patentes

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Patente citante Fecha de presentación Fecha de emisión Cesionario original Título
US429213930 Oct 198029 Sep 1981Ethyl CorporationMethod for inhibiting deposit formation in distillation units associated with separation and purification of alkyl phosphorochloridothioates
US445652624 Sep 198226 Jun 1984Atlantic Richfield CompanyMethod for minimizing fouling of heat exchangers
US451004110 Ago 19849 Abr 1985Atlantic Richfield CompanyMethod for minimizing fouling of heat exchanger
US451145710 Ago 198416 Abr 1985Atlantic Richfield CompanyMethod for minimizing fouling of heat exchanger
US455647610 Ago 19843 Dic 1985Atlantic Richfield CompanyMethod for minimizing fouling of heat exchanger
US47494685 Sep 19867 Jun 1988Betz Laboratories, Inc.Methods for deactivating copper in hydrocarbon fluids
US481035431 Oct 19867 Mar 1989Betz Laboratories, Inc.Bifunctional antifoulant compositions and methods
US482043224 Jul 198711 Abr 1989Exxon Chemical Patents Inc.Lactone-modified, Mannich base dispersant additives useful in oleaginous compositions
US48474151 Jun 198811 Jul 1989Betz Laboratories, Inc.Methods and composition for deactivating iron in hydrocarbon fluids
US48636249 Sep 19875 Sep 1989Exxon Chemical Patents Inc.Dispersant additives mixtures for oleaginous compositions
US48661397 Oct 198612 Sep 1989Exxon Chemical Patents Inc.Lactone modified, esterified dispersant additives useful in oleaginous compositions
US48661407 Oct 198612 Sep 1989Exxon Chemical Patents Inc.Lactone modified adducts or reactants and oleaginous compositions containing same
US48661417 Oct 198612 Sep 1989Exxon Chemical Patents Inc.Lactone modified, esterfied or aminated additives useful in oleaginous compositions and compositions containing same
US488358014 Abr 198928 Nov 1989Betz Laboratories, Inc.Methods for deactivating iron in hydrocarbon fluids
US489413924 May 198816 Ene 1990Betz Laboratories, Inc.Methods for deactivating copper in hydrocarbon fluids
US490042721 Jul 198913 Feb 1990Petrolite CorporationAntifoulant compositions and methods
US49044018 Sep 198827 Feb 1990The Lubrizol CorporationLubricating oil compositions
US49063947 Oct 19866 Mar 1990Exxon Chemical Patents Inc.Lactone modified mono-or dicarboxylic acid based adduct dispersant compositions
US49388811 Ago 19883 Jul 1990The Lubrizol CorporationLubricating oil compositions and concentrates
US49433826 Abr 198824 Jul 1990Exxon Chemical Patents Inc.Lactone modified dispersant additives useful in oleaginous compositions
US49523283 Jun 198828 Ago 1990The Lubrizol CorporationLubricating oil compositions
US495427631 Ago 19894 Sep 1990Exxon Chemical Patents Inc.Lactone modified adducts or reactants and oleaginous compositions containing same
US495427731 Ago 19894 Sep 1990Exxon Chemical Patents Inc.Lactone modified, esterified or aminated additives useful in oleaginous compositions and compositions containing same
US49576491 Ago 198818 Sep 1990The Lubrizol CorporationLubricating oil compositions and concentrates
US49632756 Abr 198816 Oct 1990Exxon Chemical Patents Inc.Dispersant additives derived from lactone modified amido-amine adducts
US49717119 Ene 198920 Nov 1990Exxon Chemical Patents, Inc.Lactone-modified, mannich base dispersant additives useful in oleaginous compositions
US498160213 Jun 19881 Ene 1991The Lubrizol CorporationLubricating oil compositions and concentrates
US503232028 Feb 199116 Jul 1991Exxon Chemical Patents Inc.Lactone modified mono- or dicarboxylic acid based adduct dispersant compositions
US511099719 Abr 19915 May 1992Exxon Chemical Patents Inc.Process for preventing fouling in the production of ethylene dichloride
US518355529 Ago 19912 Feb 1993Betz Laboratories, Inc.Method for controlling fouling deposit formation in a liquid hydrocarbonaceous medium
US53125546 Jul 198917 May 1994Exxon Chemical Patents Inc.Process for preparing stable oleaginous compositions
US545133325 Mar 199419 Sep 1995Exxon Chemical Patents Inc.Haze resistant dispersant-detergent compositions
US575642829 Sep 198826 May 1998Exxon Chemical Patents Inc.High functionality low molecular weight oil soluble dispersant additives useful in oleaginous composition
US605153714 Abr 199318 Abr 2000Exxon Chemical Patents IncDispersant additive mixtures for oleaginous compositions
US61273215 Sep 19913 Oct 2000Exxon Chemical Patents IncOil soluble dispersant additives useful in oleaginous compositions
US635507425 May 199512 Mar 2002Exxon Chemical Patents INCOil soluble dispersant additives useful in oleaginous compositions
US73296356 Dic 200612 Feb 2008Texas Petrochemicals LPCrude oil composition including dispersant material for mitigating fouling of process equipment and method for mitigating crude oil fouling
US822218013 Feb 200617 Jul 2012Indian Oil Corporation LimitedAdsorbent composition for removal of refractory sulphur compounds from refinery streams and process thereof