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Class Information
Number: 208/39
Name: Mineral oils: processes and products > Asphalts, tars, pitches and resins; making, treating and recovery
Description: Processes for preparing, separating, recovering or treating asphalts, tars, pitches and resins of mineral origin wherein the asphalt tar, resin, etc., is recovered as a product.










Sub-classes under this class:

Class Number Class Name Patents
208/40 By chemical conversion of oil 122
208/41 By distillation 61
208/44 Chemical modification of asphalt, tar, pitch or resin 317
208/45 Solvent extraction 209


Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8656950 Drag reduction of asphaltenic crude oils Feb. 25, 2014
8616236 Drag reduction of asphaltenic crude oils Dec. 31, 2013
8608939 Process for removing asphaltenic particles Dec. 17, 2013
8540870 Process for separating pitch from slurry hydrocracked vacuum gas oil Sep. 24, 2013
8523994 Method for reducing hydrogen sulfide evolution from asphalt Sep. 3, 2013
8480881 Synthesis of acidic silica to upgrade heavy feeds Jul. 9, 2013
8475652 Method for purification of uncatalyzed natural fuels from metal ions by means of at least one hemeprotein and use of the at least on hemeprotein Jul. 2, 2013
8450249 Drag reduction of asphaltenic crude oils May. 28, 2013
8450250 Drag reduction of asphaltenic crude oils May. 28, 2013
8450251 Drag reduction of asphaltenic crude oils May. 28, 2013
8426498 Drag reduction of asphaltenic crude oils Apr. 23, 2013
8354067 Processing asphaltene-containing tailings Jan. 15, 2013
8252168 Methods and systems for modifying asphalts Aug. 28, 2012
8246814 Process for upgrading hydrocarbon feedstocks using solid adsorbent and membrane separation of treated product stream Aug. 21, 2012
8231775 Pitch composition Jul. 31, 2012
8226816 Method of producing synthetic pitch Jul. 24, 2012
8221105 System for hot asphalt cooling and pelletization process Jul. 17, 2012
8193401 Composition of hydrocarbon fuel Jun. 5, 2012
8177960 Asphaltene-stabilising molecules having a tetrapyrrolic ring May. 15, 2012
8133446 Apparatus for producing hydrocarbon fuel Mar. 13, 2012
8133316 Process for preparing an asphalt mixture Mar. 13, 2012
8063004 Chemical composition of matter for the liquefaction and dissolution of asphaltene and paraffin sludges into petroleum crude oils and refined products at ambient temperatures and method of use Nov. 22, 2011
8034231 Method for reducing hydrogen sulfide evolution from asphalt Oct. 11, 2011
8022118 Drag reduction of asphaltenic crude oils Sep. 20, 2011
8021537 Steam generation apparatus and method Sep. 20, 2011
8007657 Preparation and treating of bituminous compositions Aug. 30, 2011
8007658 Reduced puffing needle coke from coal tar Aug. 30, 2011
8007659 Reduced puffing needle coke from coal tar distillate Aug. 30, 2011
8007660 Reduced puffing needle coke from decant oil Aug. 30, 2011
8003844 Methods of transporting heavy hydrocarbons Aug. 23, 2011
7988846 Methods and systems for modifying asphalts Aug. 2, 2011
7968020 Hot asphalt cooling and pelletization process Jun. 28, 2011
7838469 Fusing materials for prevention of lost circulation Nov. 23, 2010
7811444 Oxidation of asphaltenes Oct. 12, 2010
7714181 Process to separate colour bodies and/or asphalthenic contaminants from a hydrocarbon mixture May. 11, 2010
7695697 Devices for crude oil treatment and upgrading Apr. 13, 2010
7674365 Formulations useful as asphaltene dispersants in petroleum products Mar. 9, 2010
7662275 Methods of managing water in oil shale development Feb. 16, 2010
7625479 Petroleum hydrocarbon binder with reduced polycyclic aromatic hydrocarbon content Dec. 1, 2009
7579303 Polar solvent-asphaltene dispersant method for upgrading heavy oils Aug. 25, 2009
7438797 Method of controlling asphaltene precipitation in a fluid Oct. 21, 2008
7435333 Upgrading asphaltene containing oils Oct. 14, 2008
7393449 Petroleum hydrocarbon binder with reduced polycyclic aromatic hydrocarbon content Jul. 1, 2008
7341656 Continuous oxidation and distillation process of heavier hydrocarbon materials Mar. 11, 2008
7279090 Integrated SDA and ebullated-bed process Oct. 9, 2007
7252755 Viscosity modification of heavy hydrocarbons Aug. 7, 2007
7220348 Method of producing high softening point pitch May. 22, 2007
7214308 Effective integration of solvent deasphalting and ebullated-bed processing May. 8, 2007
7122113 Method for solubilising asphaltenes in a hydrocarbon mixture Oct. 17, 2006
7108780 Oil desalting by forming unstable water-in-oil emulsions Sep. 19, 2006

1 2 3 4 5 6










 
 
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