Patents by Inventor Jurgen Thyssen

Jurgen Thyssen 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).

  • Anthelmintic
    Patent number: 3993759
    Abstract: 2-Benzoyl-4-oxo-1,2,3,6,7,11b-hexahydro-4H-pyrazino[2,1-a]isoquinoline is used as an anthelmintic against cestodes and trematodes, preferably in admixture with a pharmaceutically acceptable carrier.
    Type: Grant
    Filed: March 11, 1974
    Date of Patent: November 23, 1976
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Rolf Pohlke, Friedrich Loebich, Herbert Thomas, Jurgen Thyssen