Patents by Inventor Renate Unger

Renate Unger 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).

  • Multistage combination preparation and its use for oral contraception
    Patent number: 4621079
    Abstract: A multistage combination preparation is useful for oral contraception and comprises a surprisingly low amount of gestodene as the gestagen and comprises ethinylestradiol as the estrogen.
    Type: Grant
    Filed: December 21, 1984
    Date of Patent: November 4, 1986
    Assignee: Schering Aktiengesellschaft
    Inventors: Ursula Lachnit-Fixson, Renate Unger