Patents by Inventor Ferdinand Baumanns

Ferdinand Baumanns 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).

  • Metallic bipolar plate for high-temperature fuel cells and method of making same
    Patent number: 5733682
    Abstract: A metallic bipolar plate for a high-temperature fuel cell, the plate being a metal body having surfaces adapted to contact electrodes of the fuel cell and passages having walls confining gases, including fuel and oxidizing gases, for the fuel cell, the body being composed of a chromium-containing alloy oxidizable at the surfaces to form chromium oxide at interfaces between the bipolar plate and the electrodes, the alloy being enriched with aluminum at least in regions of the walls in direct contact with the gases.
    Type: Grant
    Filed: September 17, 1996
    Date of Patent: March 31, 1998
    Assignee: Forschungszentrum Julich GmbH
    Inventors: Willem Quadakkers, Ferdinand Baumanns, Hubertus Nickel