Patents by Inventor Sahm Hermann

Sahm Hermann 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).

  • L-lysine-producing corynebacteria and process for the preparation of L-lysine
    Patent number: 7981640
    Abstract: L-lysine-producing strains of corynebacteria with enhanced lysE gene (lysine export carrier gene), in which strains additional genes chosen from the group comprising the dapA gene (dihydrodipicolinate synthase gene), the lysC gene (aspartate kinase gene), the dapB gene (dihydrodipicolinate reductase gene) and the pyc gene, but especially the dapA gene and the lysC gene (aspartate kinase gene), are enhanced and, in particular, over-expressed, and a process for the preparation of L-lysine.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: July 19, 2011
    Assignee: Evonik Degussa GmbH
    Inventors: Caroline Kruetzer, Stephan Hans, Mechthild Rieping, Bettina Mockel, Walter Pfefferle, Lothar Eggeling, Sahm Hermann, Miroslav Patek
  • L-lysine-producing corynebacteria and process for the preparation of L-lysine
    Patent number: 7435584
    Abstract: The invention relates to L-lysine-producing strains of corynebacteria with enhanced lysE gene (lysine export carrier gene), in which strains additional genes chosen from the group comprising the dapA gene (dihydrodipicolinate synthase gene), the lysC gene (aspartate kinase gene), the dapB gene (dihydrodipicolinate reductase gene) and the pyc gene, but especially the dapA gene and the lysC gene (aspartate kinase gene), are enhanced and, in particular, over-expressed, and to a process for the preparation of L-lysine.
    Type: Grant
    Filed: June 19, 2006
    Date of Patent: October 14, 2008
    Assignee: Evonik Degussa GmbH
    Inventors: Caroline Kruetzer, Stephan Hans, Mechthild Rieping, Bettina Mockel, Walter Pfefferle, Lothar Eggeling, Sahm Hermann, Miroslav Patek