Patents Assigned to SIEGRIED AG
  • Synthesis of noroxymorphone from morphine
    Patent number: 9546177
    Abstract: The present invention is directed to an improved process to convert morphine into noroxymorphone having economic and ecological advantages.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: January 17, 2017
    Assignee: SIEGRIED AG
    Inventors: Beat Theodor Weber, Lisa Hochstrasser