Patents by Inventor Shawn Zhao

Shawn Zhao 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).

  • Fuel cell gas diffusion layer
    Publication number: 20050079403
    Abstract: Fuel cell gas diffusion layers are disclosed.
    Type: Application
    Filed: September 1, 2004
    Publication date: April 14, 2005
    Applicant: Hollingsworth & Vose Company
    Inventors: Stephen Lipka, Shawn Zhao
  • Fuel cell gas diffusion layer
    Publication number: 20050042454
    Abstract: Fuel cell gas diffusion layers are disclosed.
    Type: Application
    Filed: August 31, 2004
    Publication date: February 24, 2005
    Applicant: Hollingsworth & Vose Company
    Inventors: Shawn Zhao, Richard Gahan