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Class Information
Number: 568/852
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Oxygen containing (e.g., perchlorylbenzene, etc.) > Hydroxy containing (h of -oh may be replaced by a group ia or iia light metal) > Acyclic > Polyhydroxy
Description: Compounds which contain at least two -OH groups.










Sub-classes under this class:

Class Number Class Name Patents
568/855 Acetylenically unsaturated 64
568/857 Ethylenically unsaturated 134
568/853 Polyalkylol substituted alkane (e.g., pentaerythritol, trimethylolethane, ect.) 162
568/858 Preparing by alcoholysis, hydrolysis or saponification of an ester 119
568/859 Preparing by hydrolysis or saponification of alkyl polyhalide or halohydrin 16
568/860 Preparing by hydroxylation at point of ethylenic unsaturation 73
568/861 Preparing by reduction (e.g., by hydrogenation, etc.) 243
568/866 Preparing from ether 60
568/868 Purification or recovery 232


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

Patent Number Title Of Patent Date Issued
8648005 Method for preparing catalyst Feb. 11, 2014
8603938 Method for preparing catalyst Dec. 10, 2013
8598377 Method for producing fatty acid esters of monovalent or polyvalent alcohols using special hydroxy-functional quaternary ammonium compounds as catalysts Dec. 3, 2013
8575402 Process for the production of alkylene glycol Nov. 5, 2013
8569527 Reactor system, an absorbent and a process for reacting a feed Oct. 29, 2013
8535689 Identification of bacterial autoinducer and use in treating bacterial pathogenicity Sep. 17, 2013
8530706 Process for the preparation of alkylene glycol Sep. 10, 2013
8524927 Process for making ethylene oxide using microchannel process technology Sep. 3, 2013
8502000 Method of making glycerol Aug. 6, 2013
8497301 Hydroxyl compounds and compositions for cholesterol management and related uses Jul. 30, 2013
8492595 Methods and systems for generating polyols Jul. 23, 2013
8492597 Production of propylene glycol from glycerine Jul. 23, 2013
8480961 Method of making alkylene glycols Jul. 9, 2013
8475632 Method for recycling cutting fluid Jul. 2, 2013
8470282 Production of calcium carbonate Jun. 25, 2013
8445704 Process for converting polysaccharides in an inorganic molten salt hydrate May. 21, 2013
8420529 Copper wiring surface protective liquid and method for manufacturing semiconductor circuit Apr. 16, 2013
8415510 Synthesis of a PEG-6 moiety from commercial low-cost chemicals Apr. 9, 2013
8410010 Process for the production of polyol base catalysts Apr. 2, 2013
8394878 Hyperbranched organic modifier, method of preparing thereof and organo-modified clay using the same Mar. 12, 2013
8389781 Catalyst with supplement component for hydroprocessing of bio-feedstock Mar. 5, 2013
8357824 Process for preparing neopentyl glycol by cracking high boilers occurring in the production process Jan. 22, 2013
8354562 Method of making alkylene glycols Jan. 15, 2013
8329959 Process for the preparation of alkylene glycol Dec. 11, 2012
8293949 Process for producing low color glycols Oct. 23, 2012
8258351 Method for producing hydrogenolysis product of polyhydric alcohol Sep. 4, 2012
8258350 Process for the manufacture of dichloropropanol Sep. 4, 2012
8247623 Catalytic process and apparatus for selective hydration of alkylene oxide Aug. 21, 2012
8236994 Process for the biological production of 1,3-propanediol from glycerol with high yield Aug. 7, 2012
8236996 Process for preparing 1,6-hexanediol Aug. 7, 2012
8236995 Process for producing product of hydrogenolysis of polyhydric alcohol Aug. 7, 2012
8222465 Catalytic process for continuously generating polyols Jul. 17, 2012
8222462 Process for generation of polyols from saccharides Jul. 17, 2012
8222463 Process for generation of polyols from saccharide containing feedstock Jul. 17, 2012
8222464 Catalytic process for continuously generating polyols Jul. 17, 2012
8212086 Method of making alkylene glycols Jul. 3, 2012
8198486 Methods and systems for generating polyols Jun. 12, 2012
8193374 Process for the preparation of alkylene carbonate and/or alkylene glycol Jun. 5, 2012
8158834 Method for producing hydrogenolysis product of polyhydric alcohol Apr. 17, 2012
8153847 Hydrogenolysis of glycerol and products produced therefrom Apr. 10, 2012
8133924 Demulsifiers and methods for use in pharmaceutical applications Mar. 13, 2012
8110712 Process for the preparation of alkylene glycol Feb. 7, 2012
8101807 Methods for converting glycerol to propanol Jan. 24, 2012
8101806 Granulated sorbitol and process for its preparation Jan. 24, 2012
8097739 Process for the manufacture of natural oil hydroxylates Jan. 17, 2012
8093437 Industrial process for production of diol Jan. 10, 2012
8084632 Methods for enhancing the efficiency of rhenium-promoted epoxidation catalysts and epoxidation methods utilizing these Dec. 27, 2011
8071820 Method for converting glycerol to propanol Dec. 6, 2011
8071819 Industrial process for production of high-purity diol Dec. 6, 2011
8049042 Resist polymer, resist composition, process for pattern formation, and starting compounds for production of the resist polymer Nov. 1, 2011

1 2 3 4 5 6 7










 
 
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