Patents by Inventor Hendrik Huesken

Hendrik Huesken has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7939301
    Abstract: The present invention is directed towards an asymmetric enzymic process for preparing optically active organic compounds. The process according to the invention is carried out in what are termed miniemulsions. The invention also relates to an enzymic reaction mixture which exhibits a miniemulsion.
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: May 10, 2011
    Assignee: Evonik Degussa GmbH
    Inventors: Harald Gröger, Karlheinz Drauz, Hendrik Hüsken, Katharina Landfester
  • Publication number: 20100204074
    Abstract: Disclosed are ionic liquids that have a low melting point. Said liquids are provided in the form of compounds that are selected among the group comprising tetraalkyl ammonium salts, benzyl trialkyl ammonium salts, tetraalkyl phosphonium salts, and benzyl trialkyl phosphonium salts, provided that at last two alkyl groups represent aliphatic radicals with chain lengths ranging from 8 to 10 C atoms, and provided that not all alkyl radicals are identical.
    Type: Application
    Filed: February 23, 2007
    Publication date: August 12, 2010
    Applicant: COGNIS IP MANAGEMENT GMBH
    Inventors: Hendrik Huesken, Paul Birnbrich, Gilbert Schenker
  • Patent number: 7632665
    Abstract: The present application relates to a reaction system in which chemically valuable compounds can be obtained in high enantiomer concentrations with the aid of a coupled enzymatically operating transformation process. The coupled enzymatic reaction system comprises a cofactor-dependent enzymatic transformation of an organic compound and an enzymatic regeneration of the cofactor, wherein the reaction system operates in aqueous solution with an amount of substrate above the solubility limit thereof. In the preferred embodiments, an alcohol dehydrogenase is the cofactor-dependent enzyme, and the regeneration of the cofactor (e.g. NADH or NADPH) is acheved by means of formate dehydrogenase.
    Type: Grant
    Filed: March 17, 2004
    Date of Patent: December 15, 2009
    Assignee: Evonik Degussa GmbH
    Inventors: Harald Gröger, Claudia Rollmann, Hendrik Hüsken, Helge Werner, Francoise Chamouleau, Chad Hagedorn, Karlheinz Drauz, Werner Hummel
  • Publication number: 20080188688
    Abstract: A process for the production of organic substances, including the steps of providing at least a two-phase system, in which selected reactants are reacted in the presence of a phase transfer catalyst, where one of the phases is an organic solvent with a log P value, at 20° C., of more than 2.6, is provided.
    Type: Application
    Filed: February 1, 2008
    Publication date: August 7, 2008
    Inventors: Hendrik Huesken, Paul Birnbrich, Rainer Hoefer