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Patentes

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Patente citante Fecha de presentación Fecha de emisión Cesionario original Título
US437237818 Mar 19818 Feb 1983The BDM CorporationShut-in device for stopping the flow of high pressure fluids
US504060529 Jun 199020 Ago 1991Union Oil Company of CaliforniaOil recovery method and apparatus
US582951910 Mar 19973 Nov 1998Enhanced Energy, Inc.Subterranean antenna cooling system
US582952831 Mar 19973 Nov 1998Enhanced Energy, Inc.Ignition suppression system for down hole antennas
US632811020 Ene 200011 Dic 2001Elf Exploration ProductionProcess for destroying a rigid thermal insulator positioned in a confined space
US641901817 Mar 200016 Jul 2002Halliburton Energy Services, Inc.Subterranean well completion apparatus with flow assurance system and associated methods
US676948711 Dic 20023 Ago 2004Schlumberger Technology CorporationApparatus and method for actively cooling instrumentation in a high temperature environment