Patents by Inventor Ursula Scheidemantel

Ursula Scheidemantel 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).

  • Preparation and use of salts of the pure enantiomers of alpha-lipoic acid
    Patent number: 5281722
    Abstract: The pure enantiomers of alpha-lipoic acid are obtained by formation of the diastereomeric salt pairs with the optical antipodes of alpha-methylbenzylamine in solution.
    Type: Grant
    Filed: November 12, 1992
    Date of Patent: January 25, 1994
    Assignee: Degussa AG
    Inventors: Gottfried Blaschke, Ursula Scheidemantel, Horst Bethge, Roland Moller, Thomas Beisswenger, Klaus Huthmacher