Patents by Inventor Peter Wohlmuth

Peter Wohlmuth 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).

  • Auxiliary for liming and loosening hairs of animal skins
    Patent number: 6689172
    Abstract: The invention concerns an auxiliary for liming and loosening hairs of animal skins, containing, in aqueous solution: 10 to 50 wt. % of a polysaccharide solution; 5 to 25 wt. % of a mercapto-carboxylic acid or one of its salts; and 1 to 10 wt. % of a mercapto-alcohol or one of its alkaline salts. Said auxiliary is added during liming of animal skins, to the solution generally containing alkalis, inorganic sulphides or hydrosulphides and anionic or non-ionic surfactants, for standard production of sweatbands.
    Type: Grant
    Filed: March 12, 2001
    Date of Patent: February 10, 2004
    Assignee: Trumpler GmbH & Co. Chemische Fabrik
    Inventors: Thomas Feigel, Gertrud Wick, Peter Wohlmuth, Martin Heise