Patents by Inventor Hermann Vyplel

Hermann Vyplel 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).

  • Pleuromutilin derivatives process for their preparation and their use
    Patent number: 4675330
    Abstract: A compound of formula I ##STR1## wherein R.sub.1 represents ethyl or vinyl andR.sub.2 represents a five membered saturated heterocycle or aminoalkyl unsubstituted or substituted in its alkyl moiety by hydroxy,in free or in the form of an acid addition or quaternary salt, which compounds are indicated for use as chemotherapeutic agents e.g. as anti-bacterially active antibiotics and as veterinary agents e.g. in combatting microorganism infections and promoting growth in domestic animals.
    Type: Grant
    Filed: May 6, 1986
    Date of Patent: June 23, 1987
    Assignee: Sandoz Ltd.
    Inventors: Heinz Berner, Hermann Vyplel