Patents Represented by Attorney Philip Y. Dehl

Find this attorney in the Justia Lawyer Directory

  • Polymer electrolyte membrane and method of making
    Patent number: 7285349
    Abstract: Polymer electrolyte membranes such as are used in fuel cells are provided along with methods of their manufacture. The polymer electrolyte membranes comprise polymers or blends of polymers having an equivalent weight of less than 1200 and a Tg of between 101° C. and 155° C.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: October 23, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Steven J. Hamrock, Linda M. Rivard, Michael A. Yandrasits, Daniel M. Pierpont