Patents by Inventor Gerhard Walther, deceased

Gerhard Walther, deceased 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).

  • 8-substituted 1,3-dialiphaticxanthine derivatives
    Patent number: 5641784
    Abstract: New xanthine compounds of formula I: ##STR1## wherein the substituents are defined herein, which xanthines are useful as adenosine antagonists.
    Type: Grant
    Filed: December 22, 1994
    Date of Patent: June 24, 1997
    Assignee: Boehringer Ingelheim KG
    Inventors: Ulrike Kufner-Muhl, Werner Stransky, Gerhard Walther, deceased, Karl-Heinz Weber, Helmut Ensinger, Franz Josef Kuhn, Gunter Schingnitz, Erich Lehr