Patents by Inventor Jutta Lang

Jutta Lang 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 synthesis of enantiomerically enriched &bgr;-amino acids
    Patent number: 6492544
    Abstract: Enantiomerically enriched N-acylated &bgr;-amino acids are synthesized by catalytic enantioselective hydrogenation of E-isomers and Z-isomers of 3-amino acrylic acid derivatives in the presence of a catalysts of formula (I)
    Type: Grant
    Filed: January 11, 2002
    Date of Patent: December 10, 2002
    Assignee: Degussa AG
    Inventors: Hans-Peter Krimmer, Karlheinz Drauz, Jutta Lang, Armin Boerner, Detlef Heller, Jens Holz
  • Process for synthesis of enantiomerically enriched beta-amino acids
    Publication number: 20020128509
    Abstract: Enantiomerically enriched N-acylated &bgr;-amino acids are synthesized by catalytic enantioselective hydrogenation of E-isomers and Z-isomers of 3-amino acrylic acid derivatives in the presence of a catalysts of formula (I) 1
    Type: Application
    Filed: January 11, 2002
    Publication date: September 12, 2002
    Applicant: DEGUSSA AG
    Inventors: Hans-Peter Krimmer, Karlheinz Drauz, Jutta Lang, Armin Boerner, Detlef Heller, Jens Holz
  • Platinum alloy catalyst for fuel cells and method of its production
    Patent number: 5489563
    Abstract: A ternary platinum alloy catalyst on a conductive carbon carrier for use in fuel cells is disclosed. For the production of the catalyst, nitrate salts are used as precursors of the alloy components and all alloy components are deposited concurrently on the carbon carrier. This method of procedure yields ageing-stable catalysts with high oxygen mass activity.
    Type: Grant
    Filed: October 17, 1994
    Date of Patent: February 6, 1996
    Assignee: Degussa Aktiengesellschaft
    Inventors: Reinhold Brand, Andreas Freund, Jutta Lang, Thomas Lehmann, Johannes Ohmer, Thomas Tacke, Gerhard Heinz, Robert Schwarz