Patents by Inventor Gerd Josef Steffens

Gerd Josef Steffens 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).

  • Chimeric proteins having fibrinolytic and thrombin-inhibiting properties
    Patent number: 6133011
    Abstract: Chimeric proteins with fibrinolytic and thrombin-inhibiting properties having a plasminogen-activating amino acid sequence which is linked at its C-terminal end to a thrombin-inhibiting amino acid sequence.
    Type: Grant
    Filed: November 10, 1997
    Date of Patent: October 17, 2000
    Assignee: Gruenenthal GmbH
    Inventors: Stephan Wnendt, Gerd Josef Steffens, Elke Janocha, Regina Heinzel-Wieland
  • Proteins having fibrinolytic and coagulation--inhibiting properties
    Patent number: 5976841
    Abstract: Proteins having fibrinolytic and coagulation-inhibiting properties which are linked at the N- and/or C-terminal end of the plasminogen-activating amino acid sequence to a thrombin- or factor Xa-inhibiting amino acid sequence. The proteins, which are produced by genetic engineering, are useful as thrombolytic agents.
    Type: Grant
    Filed: November 17, 1995
    Date of Patent: November 2, 1999
    Assignee: Gruenenthal GmbH
    Inventors: Stephan Wnendt, Regina Heinzel-Wieland, Gerd Josef Steffens