Patents by Inventor Changchun Fu

Changchun Fu 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).

  • Methods for producing paricalcitol
    Patent number: 9212136
    Abstract: The present invention is directed to novel processes for the preparation of paricalcitol to novel intermediates used in these processes, and to processes for preparation of the novel intermediates.
    Type: Grant
    Filed: July 22, 2009
    Date of Patent: December 15, 2015
    Assignees: AZAD PHARMACEUTICALS INGREDIENTS AG, UNIVERSITAT ZURICH
    Inventors: Thomas Bader, Alfred Stutz, Hans-Ulrich Bichsel, Changchun Fu
  • Methods For Producing Paricalcitol
    Publication number: 20110184199
    Abstract: The present invention is directed to novel processes for the preparation of paricalcitol to novel intermediates used in these processes, and to processes for preparation of the novel intermediates.
    Type: Application
    Filed: July 22, 2009
    Publication date: July 28, 2011
    Inventors: Thomas Bader, Alfred Stutz, Hans-Ulrich Bichsel, Changchun Fu