Patents by Inventor Madhu S. Saha

Madhu S. Saha 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).

  • Nanowire supported catalysts for fuel cell electrodes
    Patent number: 8409659
    Abstract: Metal oxide nanowires and carbon-coated metal nanowires are effective as supports for particles of an expensive catalyst material, such as platinum metal group catalyst. Such supported catalysts are useful when included in an electrode on, for example, a proton exchange membrane in a hydrogen/oxygen fuel cell. For example, tin oxide nanowires are formed on carbon fibers of carbon paper and platinum nanoparticles are deposited on the tin oxide nanowires. The nanowires provide good surfaces for effective utilization of the platinum material.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: April 2, 2013
    Assignees: GM Global Technology Operations LLC, The University of Western Ontario
    Inventors: Xueliang Sun, Madhu S. Saha, Ruying Li, Mei Cai
  • NANOWIRE SUPPORTED CATALYSTS FOR FUEL CELL ELECTRODES
    Publication number: 20090004552
    Abstract: Metal oxide nanowires and carbon-coated metal nanowires are effective as supports for particles of an expensive catalyst material, such as platinum metal group catalyst. Such supported catalysts are useful when included in an electrode on, for example, a proton exchange membrane in a hydrogen/oxygen fuel cell. For example, tin oxide nanowires are formed on carbon fibers of carbon paper and platinum nanoparticles are deposited on the tin oxide nanowires. The nanowires provide good surfaces for effective utilization of the platinum material.
    Type: Application
    Filed: November 13, 2007
    Publication date: January 1, 2009
    Applicants: GM GLOBAL TECHNOLOGY OPERATIONS, INC., THE UNIVERSITY OF WESTERN ONTARIO
    Inventors: Xueliang Sun, Madhu S. Saha, Ruying Li, Mei Cai