Patents by Inventor Erwin Ringwald

Erwin Ringwald 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-Aminopropoxyaryl derivative in the treatment of tremor
    Patent number: 4388320
    Abstract: The compound 4-(2-benzyloxy-3-tert-butylaminopropoxy)-2-methylindole is useful in the treatment of tremor, especially of essential (familiary) tremor.
    Type: Grant
    Filed: March 3, 1982
    Date of Patent: June 14, 1983
    Assignee: Sandoz Ltd.
    Inventor: Erwin Ringwald
  • Thiazoline and imidazoline derivatives useful as minor tranquilizers
    Patent number: 4333945
    Abstract: This invention provides a new tranquillizing use of thiazoline and imidazoline derivatives and novel pharmaceutical compositions for such use.
    Type: Grant
    Filed: December 3, 1980
    Date of Patent: June 8, 1982
    Assignee: Sandoz Ltd.
    Inventor: Erwin Ringwald
  • Thiazoline and imidazoline derivatives useful as antidepressants
    Patent number: 4329354
    Abstract: This invention provides a new antidepressive use of thiazoline and imidazoline derivatives and novel pharmaceutical compositions for such use.
    Type: Grant
    Filed: May 23, 1980
    Date of Patent: May 11, 1982
    Assignee: Sandoz Ltd.
    Inventor: Erwin Ringwald