Patents by Inventor Michael K Lukitsch

Michael K Lukitsch 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).

  • Low contact resistance bonding method for bipolar plates in a PEM fuel cell
    Patent number: 7550174
    Abstract: A separator assembly for use in a stack of electrochemical cells is provided, having a first conductive metallic substrate with a first surface and a second conductive metallic substrate with a second surface, wherein each of the first and second surfaces are overlaid with an ultra-thin electrically conductive metal coating. The first and second surfaces form electrically conductive paths at regions where the metal coating of the first and second layer contact one another. The contact of the surfaces overlaid with metal coating is sufficient to join the first and second substrates to one another. Preferred metal coatings comprise gold (Au). Methods of making such separator assemblies are also provided.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: June 23, 2009
    Assignee: GM Global Technologies Operations, Inc.
    Inventors: Gayatri Vyas, Michael Budinski, Brian K Brady, Michael K Lukitsch, Harald Schlag