Patents by Inventor Stephen Hans

Stephen Hans 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).

  • Method for producing L-lysine or L-lysine containing feed additives with a cornebacteria containing a mutated lysC
    Patent number: 7135313
    Abstract: Alleles of the lysC gene from corynebacteria that code for desensitized aspartokinases, and to processes for the preparation of L-lysine using bacteria containing these alleles.
    Type: Grant
    Filed: June 14, 2004
    Date of Patent: November 14, 2006
    Assignee: Degussa AG
    Inventors: Brigitte Bathe, Stephen Hans
  • Process for the preparation of L-amino acids with amplification of the zwf gene
    Publication number: 20030175911
    Abstract: The invention relates to a process for the preparation of L-amino acids by the fermentation of coryneform bacteria. The process involves: fermenting an L-amino acid-producing bacteria in which at least the zwf gene is amplified; concentrating the L-amino acid in the medium or in the cells of the bacteria; and isolating the L-amino acid produced.
    Type: Application
    Filed: January 3, 2003
    Publication date: September 18, 2003
    Inventors: Stephen Hans, Brigitte Bathe, Alexander Reth, Georg Thierbach, Caroline Kreutzer, Bettina Mockel