Patents Assigned to Degussa AG, Intellectual Property Management
  • Alleles of the gnd gene from coryneform bacteria
    Patent number: 7338790
    Abstract: The invention relates to mutants and alleles of the gnd gene from coryneform bacteria coding for 6-phosphogluconate dehydrogenases which contain at position 329 or a comparable position of the amino acid sequence any amino acid other than L-valine, and to processes for the production of amino acids, preferably L-lysine and L-tryptophan, by fermentation using bacteria that contain these alleles.
    Type: Grant
    Filed: September 16, 2005
    Date of Patent: March 4, 2008
    Assignee: Degussa AG, Intellectual Property Management
    Inventors: Georg Thierbach, Brigitte Bathe, Natalie Schischka
  • Ultrasound welding of plastics components
    Publication number: 20040206443
    Abstract: A process for the bonding of a plastics pipe to another plastics part by ultrasound welding using sound waves which act longitudinally with respect to the pipe axis, while the arrangement of the areas to be welded is substantially parallel to the pipe axis. The welding procedure is combined with the forced insertion of the other plastics part into the plastics pipe in such a way that there is at least some overlap between the exposure to sound and the forced insertion.
    Type: Application
    Filed: April 19, 2004
    Publication date: October 21, 2004
    Applicant: DEGUSSA AG - Intellectual Property Management
    Inventors: Sylvia Monsheimer, Rainer Goering, Hans Ries, Guenter Brudny