Patents by Inventor Andreas Karau

Andreas Karau 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).

  • Process for the oxidation of alcohols using homogeneously soluble polymer-enlarged nitrogen compounds as the catalyst
    Patent number: 6451943
    Abstract: The present invention relates to a process for the oxidation of alcohols using an oxidation agent and catalytic amounts of homogeneously soluble polymer-enlarged nitroxyl derivatives that are obtained by copolymerization of a mixture containing a compound (I)
    Type: Grant
    Filed: June 14, 2001
    Date of Patent: September 17, 2002
    Assignee: Degussa AG
    Inventors: Olaf Burkhardt, Jens Woeltinger, Andreas Karau, Jean-Louis Philippe, Hans Henniges, Andreas Bommarius, Hans-Peter Krimmer, Karlheinz Drauz
  • Molecular weight-enlarged ligands for asymmetric, homogeneously soluble hydrogenation catalysts, process for the production thereof and use
    Publication number: 20020062004
    Abstract: The present invention relates to a molecular weight-enlarged, homogeneously soluble ligand, which includes:
    Type: Application
    Filed: January 24, 2001
    Publication date: May 23, 2002
    Inventors: Hans-Peter Krimmer, Jens Woeltinger, Olaf Burkhardt, Ingo Klement, Hans Henniges, Karlheinz Drauz, Andreas Bommarius, Jean-Louis Philippe, Andreas Karau
  • Process for the oxidation of alcohols using homogeneously soluble polymer-enlarged nitrogen compounds as the catalyst
    Publication number: 20020035223
    Abstract: The present invention relates to a process for the oxidation of alcohols using an oxidation agent and catalytic amounts of homogeneously soluble polymer-enlarged nitroxyl derivatives that are obtained by copolymerization of a mixture containing a compound (I) 1
    Type: Application
    Filed: June 14, 2001
    Publication date: March 21, 2002
    Applicant: Degussa AG
    Inventors: Olaf Burkhardt, Jens Woeltinger, Andreas Karau, Jean-Louis Philippe, Hans Henniges, Andreas Bommarius, Hans-Peter Krimmer, Karlheinz Drauz
  • Polymeric diphosphine ligands for homogeneously soluble hydrogenation catalysts, process for the production thereof and use
    Publication number: 20010034417
    Abstract: Molecular weight-enlarged, homogeneously soluble ligands are provided that are especially useful for hydrogenation catalysts, wherein the ligands contain homochiral active centers of bis(3,4-diarylphosphinyl)pyrrolidines, and their use in producing cataylsts for enantioselective reactions, as well as the catalysts thus produced.
    Type: Application
    Filed: January 24, 2001
    Publication date: October 25, 2001
    Applicant: Degussa-Huels Aktiengesellschaft
    Inventors: Olaf Burkhardt, Jens Woeltinger, Andreas Bommarius, Juan Jose Almena Perea, Hans Henniges, Karlheinz Drauz, Andreas Karau, Jean-Louis Philippe, Hans-Peter Krimmer, Gunther Oehme