Patents by Inventor Gouyan Hou

Gouyan Hou 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).

  • Catalyst agglomerates for membrane electrode assemblies
    Patent number: 6911411
    Abstract: A method of preparing catalyst agglomerates for electrochemical devices is provided. The method comprises dispersing particles of a catalyst in a non-aqueous solvent to form a dispersion of the catalyst, adding an ion conducting polymer in a dilute solution to the dispersion of the catalyst under agitation to form catalyst agglomerates, and stirring the dispersion of the catalyst and the catalyst agglomerates to control the growth of the agglomerates. A directly applicable catalyst composition is also provided. The catalyst composition comprises the catalyst agglomerates prepared according to the present invention, a solvent to plasticize surfaces of the catalyst agglomerates and the membrane, and a non-aqueous carrier solvent.
    Type: Grant
    Filed: November 21, 2002
    Date of Patent: June 28, 2005
    Assignee: Polyfuel, Inc.
    Inventors: Philip Cox, Suk-Yal Cha, Gouyan Hou, Ngan Tran, Anh Duong
  • Catalyst agglomerates for membrane electrode assemblies
    Publication number: 20030134739
    Abstract: A method of preparing catalyst agglomerates for electrochemical devices is provided. The method comprises dispersing particles of a catalyst in a non-aqueous solvent to form a dispersion of the catalyst, adding an ion conducting polymer in a dilute solution to the dispersion of the catalyst under agitation to form catalyst agglomerates, and stirring the dispersion of the catalyst and the catalyst agglomerates to control the growth of the agglomerates. A directly applicable catalyst composition is also provided. The catalyst composition comprises the catalyst agglomerates prepared according to the present invention, a solvent to plasticize surfaces of the catalyst agglomerates and the membrane, and a non-aqueous carrier solvent.
    Type: Application
    Filed: November 21, 2002
    Publication date: July 17, 2003
    Inventors: Philip Cox, Suk-Yal Cha, Gouyan Hou, Ngan Tran, Anh Duong