Patents by Inventor Manfred F. Herrmann

Manfred F. Herrmann 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).

  • 3-Pyrrolin-2-one derivatives and compositions
    Patent number: 4284632
    Abstract: New 3-cyclicaminoalkoxy-4-phenyl-3-pyrrolin-2-ones are disclosed. These compounds exhibit anti-hypertensive and vasodilatory action.
    Type: Grant
    Filed: September 14, 1979
    Date of Patent: August 18, 1981
    Assignee: Warner-Lambert Company
    Inventors: Gerhard Satzinger, Manfred F. Herrmann, Gustav Hechtfischer
  • Novel 3-hydroxy-pyrrolin-2-one derivatives
    Patent number: 4231933
    Abstract: The present invention is concerned with novel 3-hydroxy-pyrrolin-2-one derivatives and with the preparation thereof.
    Type: Grant
    Filed: December 7, 1978
    Date of Patent: November 4, 1980
    Assignee: Warner-Lambert Company
    Inventors: Gerhard Satzinger, Manfred F. Herrmann, Gustav Hechtfischer
  • 3-Pyrrolin-2-one derivatives
    Patent number: 4205078
    Abstract: The present invention is concerned with new 3-pyrrolin-2-one derivatives which exhibit anti-hypertensive and vasodilatory action and with the preparation thereof.
    Type: Grant
    Filed: July 5, 1978
    Date of Patent: May 27, 1980
    Assignee: Warner-Lambert Company
    Inventors: Gerhard Satzinger, Manfred F. Herrmann, Gustav Hechtfischer