Patents by Inventor Friederike Turnowsky

Friederike Turnowsky 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, their production and use
    Patent number: 4428953
    Abstract: Novel pleuromutilin derivatives of formula I, ##STR1## in which R.sub.1 is ethyl or vinyl,m is 0 or 1, andR.sub.2 is a heterocyclic radical, in which a 5- or 6-membered, unsaturated or saturated heterocyclic ring containing one or more hetero atoms selected from oxygen, sulphur and nitrogen, is attached to the --S(CH.sub.2).sub.m --group,provided that when m is 0, R.sub.2 is other than pyridyl,their production and use as antimicrobial agents are described.
    Type: Grant
    Filed: March 8, 1982
    Date of Patent: January 31, 1984
    Assignee: Sandoz, Ltd.
    Inventors: Heinz Berner, Friederike Turnowsky, Georg Laber, Johannes Hildebrandt