Patents by Inventor Peter Fehsenfeld

Peter Fehsenfeld 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).

  • Vascular implant
    Patent number: 5674177
    Abstract: In a vascular implant for the prevention or elimination of vascular restrictions a tubular body to be inserted into a body vessel includes at least a first nuclide species which has a half life in the range of 7 hours to 7 days and a second nuclide species which has a half life of more than 100 days. Instead of providing a second nuclide species, the first nuclide species may also decay into the second nuclide species thereby providing a high initial radioactivity for a relatively short period and a relatively low radioactivity over a relatively long period.
    Type: Grant
    Filed: July 17, 1995
    Date of Patent: October 7, 1997
    Assignee: Kernforschungszentrum Karlsruhe GmbH
    Inventors: Christoph Hehrlein, Peter Fehsenfeld