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Patente citante Fecha de presentación Fecha de emisión Cesionario original Título
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US46785583 Jul 19857 Jul 1987Institut Francais du Petrole
Laboratoire Central des Ponts et Chausses
Method usable in particular for washing and desorbing solid products containing hydrocarbons
US46981523 Abr 19856 Oct 1987Oil recovery systems
US47387833 Jul 198619 Abr 1988Flotation cyclone device
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Canadian Occidental Petroleum Ltd.
Esso Resources Canada Limited
Gulf Canada Resources Limited
Her Majesty the Queen in right of the Province of Alberta, as represented by the Minister of Energy and Natural Resources
HBOG-Oil Sands Limited Partnership
PanCanadian Petroleum Limited
Petro-Canada Inc.
Microbubble flotation process for the separation of bitumen from an oil sands slurry
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US49815792 Dic 19881 Ene 1991The Standard Oil CompanyProcess for separating extractable organic material from compositions comprising said extractable organic material intermixed with solids and water
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US509298330 Nov 19893 Mar 1992The Standard Oil CompanyProcess for separating extractable organic material from compositions comprising said extractable organic material intermixed with solids and water using a solvent mixture
US514753431 Jul 199015 Sep 1992Waste water treatment system
US518681715 Abr 199116 Feb 1993The Standard Oil CompanyProcess for separating extractable organic material from compositions comprising oil-in-water emulsions comprising said extractable organic material and solids
US520203130 Jul 199213 Abr 1993Waste water treatment system
US529816710 Dic 199229 Mar 1994Method for separating immiscible liquid
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US564790611 Mar 199215 Jul 1997A-Z Terminal Corporation
Leonard Smith
Pipe cleaning machine
US59582564 Jun 199728 Sep 1999Tetra Technologies, Inc.Method for pretreating an industrial wastewater
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US652796017 Ago 20004 Mar 2003Canadian Environmental Equipment & Engineering Technologies, Inc.Jet pump treatment of heavy oil production sand
US714778817 May 200112 Dic 2006Separating a hydrocarbon production stream into its oil, water and particle constituents
US72257578 Mar 20055 Jun 2007Method of cleaning soiled bedding material in barns
US738382827 May 200510 Jun 2008Emission & Power Solutions, Inc.Method and apparatus for use in enhancing fuels
US74049033 Feb 200629 Jul 2008RJ Oil Sands Inc.Drill cuttings treatment system
US741667121 Jul 200426 Ago 2008RJ Oil Sands Inc.Separation and recovery of bitumen oil from tar sands
US742889627 May 200530 Sep 2008Emission & Power Solutions, Inc.Method and apparatus for use in enhancing fuels
US76912593 Mar 20066 Abr 2010M-I L.L.C.Separation of tar from sand
US813756613 Jun 200820 Mar 2012RJ Oil Sands Inc.Recovery of tailings ponds

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