Patents by Inventor Pierre Charles Wirth

Pierre Charles Wirth 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).

  • Oestratriene diethers
    Patent number: 4053489
    Abstract: 3,17-Estratriene diethers, useful as anti-seborrheic and gynecological agents, is described.
    Type: Grant
    Filed: February 11, 1976
    Date of Patent: October 11, 1977
    Inventor: Pierre Charles Wirth