Patents by Inventor Victor Trapp

Victor Trapp 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).

  • Bipolar plates for fuel cell stacks
    Patent number: 6706437
    Abstract: This invention relates to bipolar plates for electrochemical cells, particularly low-temperature fuel cells, with surface modification to enhance through-plate conductivity, processes for improving the surface properties of those bipolar plates, and fuel cell assemblies made with such plates. Graphite-polymer composite bipolar plates with high bulk conductivity are subjected to an abrasive surface treatment to improve the surface contact as well as the reactant transfer to the adjacent gas diffusion electrodes.
    Type: Grant
    Filed: January 10, 2001
    Date of Patent: March 16, 2004
    Assignee: SGL Carbon AG
    Inventors: Victor Trapp, Markus Leib, Ruediger Hengl, Tetsu Yamamoto
  • Electrode substrate for electrochemical cells based on low-cost manufacturing processes
    Patent number: 6511768
    Abstract: This invention relates to electrode substrates for electrochemical cells, particularly low-temperature fuel cells, and processes for their production. Graphitized fiber web structures are used that have a preferred non-planar fiber alignment resulting in high through-plane conductivity. These structures are further impregnated and processed to adjust the final product properties.
    Type: Grant
    Filed: March 1, 2001
    Date of Patent: January 28, 2003
    Assignee: SGL Carbon AG
    Inventors: Victor Trapp, Peter Wilde, Heiko Leinfelder
  • Bipolar plates for fuel cell stacks
    Publication number: 20020127457
    Abstract: This invention relates to bipolar plates for electrochemical cells, particularly low-temperature fuel cells, with surface modification to enhance through-plate conductivity, processes for improving the surface properties of those bipolar plates, and fuel cell assemblies made with such plates. Graphite-polymer composite bipolar plates with high bulk conductivity are subjected to an abrasive surface treatment to improve the surface contact as well as the reactant transfer to the adjacent gas diffusion electrodes.
    Type: Application
    Filed: January 10, 2001
    Publication date: September 12, 2002
    Inventors: Victor Trapp, Markus Leib, Ruediger Hengl, Tetsu Yamamoto