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Patente citante Fecha de presentación Fecha de emisión Cesionario original Título
US582075017 Ene 199713 Oct 1998Exxon Research and Engineering CompanyThermal decomposition of naphthenic acids
US59140305 May 199822 Jun 1999Exxon Research and Engineering. Co.Process for reducing total acid number of crude oil
US597636010 Oct 19972 Nov 1999Exxon Research and Engineering CompanyViscosity reduction by heat soak-induced naphthenic acid decomposition in hydrocarbon oils
US608675129 Ago 199711 Jul 2000Exxon Research and Engineering CoThermal process for reducing total acid number of crude oil