Patents by Inventor Anne Menzel

Anne Menzel 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 preparing optically active amino acids using a whole-cell catalyst
    Patent number: 8105806
    Abstract: The present invention relates to a process for preparing, in particular, enantiomerically enriched L-?-amino acids, in particular those of the general formula (I). In this connection, the process according to the invention uses 2-ketocarboxylic acids which are converted into the desired products using a whole-cell catalyst which comprises an amino acid dehydrogenase and a cofactor-regenerating enzyme.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: January 31, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Harald Groeger, Helge Werner, Josef Altenbuchner, Anne Menzel, Werner Hummel
  • Process For Preparing Optically Active Amino Acids Using a Whole-Cell Catalyst
    Publication number: 20090087885
    Abstract: The present invention relates to a process for preparing, in particular, enantiomerically enriched L-?-amino acids, in particular those of the general formula (I). In this connection, the process according to the invention uses 2-ketocarboxylic acids which are converted into the desired products using a whole-cell catalyst which comprises an amino acid dehydrogenase and a cofactor-regenerating enzyme.
    Type: Application
    Filed: March 18, 2005
    Publication date: April 2, 2009
    Applicant: DEGUSSA AG
    Inventors: Harald Groeger, Helge Werner, Josef Altenbuchner, Anne Menzel, Werner Hummel