Patents by Inventor Irene Kramer

Irene Kramer 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).

  • 3,4-Diazole derivatives and pharmaceutical preparations containing these compounds
    Patent number: 4727081
    Abstract: 3,4-Diazole derivatives corresponding to the general formula I ##STR1## which exert a highly selective action on histamine-H.sub.2 receptors are described. Processes for the preparation of these compounds and pharmaceutical preparations containing these compounds are also described.
    Type: Grant
    Filed: November 7, 1985
    Date of Patent: February 23, 1988
    Assignee: Ludwig Heumann & Co. GmbH
    Inventors: Kurt Wegner, Irene Kramer, Helmut Schickaneder, Walter Schunack, Istvan Szelenyi, Kurt H. Ahrens