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Brevets

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Brevet citant Date de dépôt Date de délivrance Cessionnaire d'origine Titre
US396191628 févr. 19748 juin 1976Exxon Research and Engineering CompanyMiddle distillate compositions with improved filterability and process therefor
US41534227 avr. 19758 mai 1979Exxon Research & Engineering Co.Polymer combinations useful in distillate hydrocarbon oils to improve cold flow properties
US415342328 mars 19758 mai 1979Exxon Research & Engineering Co.Polymer combinations useful in distillate hydrocarbon oils to improve cold flow properties
US415342422 avr. 19778 mai 1979Exxon Research & Engineering Co.Polymer combinations useful in distillate hydrocarbon oils to improve cold flow properties
US449145521 sept. 19821 janv. 1985Nippon Oil and Fats Co., Ltd.Method for improving cold flow of fuel oils
US455915512 mars 198517 déc. 1985The Lubrizol CorporationHydrocarbyl substituted carboxylic acylating agent derivative containing combinations, and fuels containing same
US45644609 août 198214 janv. 1986The Lubrizol CorporationHydrocarbyl-substituted carboxylic acylating agent derivative containing combinations, and fuels containing same
US457552612 mars 198511 mars 1986The Lubrizol CorporationHydrocarbyl substituted carboxylic acylaging agent derivative containing combinations, and fuels containing same
US461334216 oct. 198523 sept. 1986The Lubrizol CorporationHydrocarbyl substituted carboxylic acylating agent derivative containing combinations, and fuels containing same
US462368416 oct. 198518 nov. 1986The Lubrizol CorporationHydrocarbyl substituted carboxylic acylating agent derivative containing combinations, and fuels containing same
US528132930 mars 199225 janv. 1994Rohm GmbHMethod for improving the pour point of petroleum oils