Patents by Inventor Chiaun-Iou Yen

Chiaun-Iou Yen 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).

  • Manufacturing process of high performance conductive polymer composite bipolar plate for fuel cell
    Publication number: 20070241475
    Abstract: A composite bipolar plate for a polymer electrolyte membrane fuel cell (PEMFC) is prepared as follows: a) compounding vinyl ester and graphite powder to form bulk molding compound (BMC) material, the graphite powder content ranging from 60 wt % to 95 wt % based on the total weight of the graphite powder and vinyl ester, wherein 0.5-10 wt % modified organo clay by intercalating with a polyether amine, based on the weight of the vinyl ester resin, is added during the compounding; b) molding the BMC material from step a) to form a bipolar plates having a desired shaped at 80-200° C. and 500-4000 psi.
    Type: Application
    Filed: May 23, 2006
    Publication date: October 18, 2007
    Applicant: National Tsing Hua University
    Inventors: Chen-Chi Ma, Shu-Hang Liao, Chiaun-Iou Yen, Yu-Feng Lin, Chih-Hung Hung