Patents by Inventor Margaret Fleming, legal representative

Margaret Fleming, legal representative 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).

  • Acrylic fiber bonded carbon fiber paper as gas diffusion media for fuel cell
    Patent number: 8343452
    Abstract: A gas diffusion media for a fuel cell, such as a proton exchange membrane fuel cell, is provided. The gas diffusion media includes carbonizable acrylic pulp fibers instead of conventional phenolic resin as a binder material. The acrylic fibers are mixed with the carbon fiber dispersion during the papermaking step, thus eliminating the phenolic resin impregnation step typically associated with conventional gas diffusion media manufacturing processes. The mat is then cured and carbonized to produce gas diffusion media.
    Type: Grant
    Filed: March 20, 2006
    Date of Patent: January 1, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Chunxin Ji, Gerald J. Fleming, Margaret Fleming, legal representative, Mark Mathias