Patents by Inventor Stefan Gangkofner

Stefan Gangkofner 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).

  • Racemic separation of ketamine
    Patent number: 6040479
    Abstract: The present invention is concerned with an improved process for the resolution of racemic 2-(o-chlorophenyl)-2-methylaminocyclohexanone (ketamine).
    Type: Grant
    Filed: November 10, 1998
    Date of Patent: March 21, 2000
    Assignees: Goedecke Aktiengesellschaft, Cu Chemie Uetikon GmbH
    Inventors: Klaus Steiner, Stefan Gangkofner, Jean-Marie Grunenwald