Patents by Inventor Andreas Oswald Stoermer

Andreas Oswald Stoermer 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).

  • Patent number: 7348093
    Abstract: The invention relates to a fuel cell stack which is composed of several individual fuel cells that are stacked on top of each other. Each of said fuel cells comprises a cathode-electrolyte-anode unit (7) and a perforated film (1) which distributes a combustible gas across the first electrode surface thereof, supports the cathode-electrolyte-anode unit (7), and is combined into a cassette (4) that is provided with a hollow space along with an additional structure (3). The combustible gas reaches the first electrode (7A) via said cassette (4).
    Type: Grant
    Filed: February 24, 2005
    Date of Patent: March 25, 2008
    Assignee: Bayerische Motoren Werke Aktiengesellscaft
    Inventors: Maximilian Danzer, Franz-Josef Wetzel, Xiaofeng Yan, Thomas Hoefler, Bernd Kuhn, Andreas Oswald Stoermer, Olav Finkenwirth
  • Patent number: 7261969
    Abstract: A fuel cell includes a cathode-electrolyte-anode unit, and a perforated foil structure distributes fuel gas over an electrode surface thereof. Longitudinal axes of at least some of the holes forming perforations in the foil are inclined differently relative to the foil surface such that, near a fuel gas feed, the outlet openings of the holes facing the electrode are oriented at least slightly toward the area of the fuel gas outlet from the fuel cell. Near a fuel gas outlet, the inlet openings of the holes facing the electrode are oriented at least slightly to the area of the fuel gas feed. However, holes whose inlet openings facing away from the electrode are oriented toward the fuel gas feed, and holes whose outlet openings facing away from the electrode are oriented toward the fuel gas outlet, may also be arranged alternately side-by-side.
    Type: Grant
    Filed: February 24, 2005
    Date of Patent: August 28, 2007
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Maximilian Danzer, Franz-Josef Wetzel, Xiaofeng Yan, Thomas Hoefler, Bernd Kuhn, Andreas Oswald Stoermer, Olav Finkenwirth