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Class Information
Number: 585/500
Name: Chemistry of hydrocarbon compounds > Unsaturated compound synthesis
Description: Subject matter in which a hydrocarbon molecule is produced which has no ring configuration and is less than saturated with hydrogen, that is, is having less hydrogen than the formula CnH2n

Sub-classes under this class:

Class Number Class Name Patents
585/502 By addition of entire unsaturated molecules, e.g., polymerization, etc. 178
585/643 By alkyl transfer, e.g., disproportionation, etc. 176
585/648 By c content reduction, e.g., cracking, etc. 386
585/654 By dehydrogenation 421
585/637 By displacement of hydrocarbon radical by hydrocarbon molecule 27
585/664 By double-bond-shift isomerization 149
585/671 By skeletal isomerization 197
585/601 Diolefin product 62
585/638 From nonhydrocarbon feed 380
585/600 Product having more than two double bonds 56
585/534 Triple-bond product 70
585/636 Using apparatus of recited composition 25
585/634 With heat conservation or using solid or molten inert heat carrier, e.g., regenerative furnace, etc. 45
585/501 With measuring, sensing, testing, or synthesis operation control responsive to diverse condition 35

Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
8685232 Fluid catalytic cracking (FCC) process for manufacturing propylene and ethylene in increased yield Apr. 1, 2014
8642824 Chemical methods for treating a metathesis feedstock Feb. 4, 2014
8598402 Butane absorption system for vent control and ethylene purification Dec. 3, 2013
8580140 Cyclopropene complex compositions Nov. 12, 2013
8487154 Market driven alkylation or oligomerization process Jul. 16, 2013
8455708 Flexible production of alkylate gasoline and distillate Jun. 4, 2013
8449849 Continuous process for converting natural gas to liquid hydrocarbons May. 28, 2013
8349263 High energy reduction in a propane dehydrogenation unit by utilizing a high pressure product splitter column Jan. 8, 2013
8288604 Method of rapid methylation, kit for preparing PET tracer and method of producing PET tracer Oct. 16, 2012
8258361 Transition metal complex compounds, olefin oligomerization catalysts including the compounds, and processes for producing olefin oligomers using the catalysts Sep. 4, 2012
8237003 Metathesis catalyst and process for use thereof Aug. 7, 2012
8222469 Catalysts and processes for the formation of terminal olefins by ethenolysis Jul. 17, 2012
8183421 Biofuel production by high temperature non-faradaic electrochemical modification of catalysis May. 22, 2012
8142661 Residual stream upgrading in a propylene oxide-styrene monomer process Mar. 27, 2012
8128879 Apparatus for increasing weight of olefins Mar. 6, 2012
8119852 Process for manufacturing neohexene Feb. 21, 2012
8106248 Conversion of co-fed methane and hydrocarbon feedstocks into higher value hydrocarbons Jan. 31, 2012
8013200 Process for producing olefins Sep. 6, 2011
8013196 Process for the production of ethylene Sep. 6, 2011
8003839 Process for generating linear apha olefin comonomers Aug. 23, 2011
7989386 Multi-layer catalyst made from niobium for the catalytic conversion of hydrocarbons Aug. 2, 2011
7989668 Lowering nitrogen-containing Lewis bases in molecular sieve oligomerisation Aug. 2, 2011
7989670 Process to produce high viscosity fluids Aug. 2, 2011
7943808 Methane conversion to higher hydrocarbons May. 17, 2011
7906698 Hydrocarbon conversion using molecular sieve SSZ-75 Mar. 15, 2011
7842264 Process and apparatus for carbon capture and elimination of multi-pollutants in flue gas from hydrocarbon fuel sources and recovery of multiple by-products Nov. 30, 2010
7820868 Transition metal substituted polyoxometalates and process for their preparation Oct. 26, 2010
7790650 Catalyst comprising nanocarbon structures for the production of unsaturated hydrocarbons Sep. 7, 2010
7785378 Fischer-tropsch derived turbine fuel and process for making same Aug. 31, 2010
7744747 Olefin production utilizing whole crude oil/condensate feedstock with a partitioned vaporization unit Jun. 29, 2010
7678932 Process for co-producing olefins and esters by ethenolysis of unsaturated fats in non-aqueous ionic liquids Mar. 16, 2010
7625482 Nanoparticulate-catalyzed oxygen transfer processes Dec. 1, 2009
7618544 Fiber film reactors to effect separation and reaction between two immiscible reaction components Nov. 17, 2009
7538250 Pyrene compound and organic light emitting device May. 26, 2009
7534340 Process for the preparation of middle distillates and lube bases starting from synthetic hydrocarbon feedstocks May. 19, 2009
7453019 Conversion process Nov. 18, 2008
7381853 Production of higher olefins Jun. 3, 2008
7250150 Chemical reactor with pressure swing adsorption Jul. 31, 2007
7250543 Preparation of catalyst and use for high yield conversion of methane to ethylene Jul. 31, 2007
7235510 Catalysts Jun. 26, 2007
7166267 Solid solutions, applicable as catalysts, with perovskite structure comprising noble metals Jan. 23, 2007
7160834 Soluble group-10 .alpha.-diimine catalyst precursors, catalysts and methods for dimerizing and oligomerizing olefins Jan. 9, 2007
7087794 Oxygenate conversion in the presence of highly unsaturated compounds Aug. 8, 2006
7074971 Recovery of ethylene and propylene from a methanol to olefin reaction system Jul. 11, 2006
7025872 Process for obtaining a feedstock that can be used in an etherification unit Apr. 11, 2006
6943275 Process of preparing a disubstituted 9-alkylidenefluorene or a derivative thereof Sep. 13, 2005
6903042 Catalytic composition and process for oligomerizing ethylene, in particular to 1-hexene Jun. 7, 2005
6696614 Catalyst for steam cracking reactions and related preparation process Feb. 24, 2004
6483000 Process for the manufacture in pure form of 1-pentene or an alpha-olefin lower than 1-pentene Nov. 19, 2002
6478851 Ethylene treatment by gas permeation Nov. 12, 2002

1 2 3 4 5 6 7

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