Patents by Inventor Wolfgang Voightlander

Wolfgang Voightlander 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).

  • Cardioactive 12-epi-digoxin and derivatives thereof
    Patent number: 4107299
    Abstract: 12-Epi-digoxins of the formula ##STR1## wherein R.sub.1 and R.sub.2 each independently is hydrogen or a lower alkanoyl or alkyl radical,R.sub.3 is hydrogen or a lower alkanoyl radical, andR.sub.4 is hydrogen or a lower alkyl, alkenyl or alkynyl radical,Are characterized by marked cardioactivity and therapeutic spectrum. They are produced by reduction of the corresponding 12-dehydrodigoxin.
    Type: Grant
    Filed: November 4, 1976
    Date of Patent: August 15, 1978
    Assignee: Boehringer Mannheim GmbH
    Inventors: Fritz Kaiser, Wolfgang Schaumann, Kurt Stach, deceased, by Werner Plattner, administrator, Wolfgang Voightlander