Patents by Inventor Lutz Hoffer

Lutz Hoffer 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).

  • Process for the preparation of factor IX from biological sources
    Patent number: 5919909
    Abstract: A process for the preparation of factor IX from a biological source by chromatography involves prior treatment with ammonium sulfate as a protein precipitant at a concentration of from 1.5-2.3 mol/l.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: July 6, 1999
    Assignee: Octapharma AG
    Inventors: Djuro Josic, Lutz Hoffer, Frank Morfeld