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Patentes

Citada por

Patente citante Fecha de presentación Fecha de emisión Cesionario original Título
US408028328 Abr 197721 Mar 1978Koa Oil Company, Ltd.Process for continuous production of pitch
US419390014 Dic 197818 Mar 1980Ashland Oil, Inc.Fire carcass resilient rubber compositions
US427100623 Abr 19802 Jun 1981Exxon Research and Engineering CompanyProcess for production of carbon artifact precursor
US44977893 Dic 19825 Feb 1985Ashland Oil, Inc.Process for the manufacture of carbon fibers
US47056188 Abr 198610 Nov 1987Maruzen Petrochemical Co., Ltd.Process for the preparation of an intermediate pitch for manufacturing carbon products
US475527617 Nov 19865 Jul 1988Union Carbide CorporationNitro-substituted pitch and process for the production thereof
US523867220 Jun 198924 Ago 1993Ashland Oil, Inc.Mesophase pitches, carbon fiber precursors, and carbonized fibers
US561416411 Sep 199225 Mar 1997Ashland Inc.Production of mesophase pitches, carbon fiber precursors, and carbonized fibers
US626780916 Nov 199931 Jul 2001Marathon Ashland Petroleum LLCDriveway sealer using phase stable pourable pitch
US70943315 Nov 200322 Ago 2006Marathon Ashland Petroleum LLCViscosity modification of heavy hydrocarbons using dihydric alcohols
US73188918 Oct 200415 Ene 2008DTX Technologies LLCNoah's pitch process
US74491316 Oct 200411 Nov 2008Terry Industries, Inc.Techniques and compositions for shielding radioactive energy
US75534313 Oct 200830 Jun 2009Terry Industries, Inc.Techniques and compositions for shielding radioactive energy

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