Patents by Inventor Ludger Rolf

Ludger Rolf 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).

  • Pain killer
    Patent number: 5216019
    Abstract: The invention relates to the use of L-tryptophane and a peripheral degradation inhibitor for L-tryptophan for the preparation of an analgesic drug for humans, the ratio by weight of L-tryptophan to the peripheral degradation inhibitor being from 3:1 to 10:1.
    Type: Grant
    Filed: April 1, 1992
    Date of Patent: June 1, 1993
    Inventors: Joachim Kamprad, Ludger Rolf