Patents by Inventor Gordon Calumdann

Gordon Calumdann 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).

  • Proton-conducting membrane and use thereof
    Publication number: 20040127588
    Abstract: The present invention relates to a novel proton-conducting polymer membrane based on polyazoles which can, because of its excellent chemical and thermal properties, be used in a variety of ways and is particularly useful as polymer electrolyte membrane (PEM) to produce membrane electrode units for PEM fuel cells.
    Type: Application
    Filed: February 10, 2004
    Publication date: July 1, 2004
    Inventors: Gordon Calumdann, Michael J Sansone, Oemer Uensal, Joachim Kiefer