Patents by Inventor Thao Ngoc Pham

Thao Ngoc Pham 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).

  • Membrane electrode assembly and method of its manufacture
    Patent number: 6425993
    Abstract: A method is provided for making a membrane electrode that employs a composite membrane, which include both a porous membrane and an ion conducting electrolyte, by partially filling a porous membrane with an ion conducting electrolyte to form a partially filled membrane and then compressing the partially filled membrane with electrode particles so as to remove void volume from the partially filled membrane and embed the electrode particles in the partially filled membrane. The membrane electrode of this invention is suitable for use in electrochemical devices, including proton exchange membrane fuel cells, electrolyzers, chlor-alkali separation membranes, and the like.
    Type: Grant
    Filed: March 23, 2000
    Date of Patent: July 30, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: Mark K. Debe, Thao Ngoc Pham, Andrew J. Steinbach
  • Membrane electrode assembly and method of its manufacture
    Patent number: 6042959
    Abstract: A method is provided for making a membrane electrode that employs a composite membrane, which include both a porous membrane and an ion conducting electrolyte, by partially filling a porous membrane with an ion conducting electrolyte to form a partially filled membrane and then compressing the partially filled membrane with electrode particles so as to remove void volume from the partially filled membrane and embed the electrode particles in the partially filled membrane. The membrane electrode of this invention is suitable for use in electrochemical devices, including proton exchange membrane fuel cells, electrolyzers, chlor-alkali separation membranes, and the like.
    Type: Grant
    Filed: October 10, 1997
    Date of Patent: March 28, 2000
    Assignee: 3M Innovative Properties Company
    Inventors: Mark K. Debe, Thao Ngoc Pham, Andrew J. Steinbach