Patents by Inventor John N Devine

John N Devine 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).

  • Ion exchange materials
    Patent number: 7125935
    Abstract: A method of preparing an ion-conducting material, for example membrane, having reduced sensitivity to water includes a step of treating an ion-conducting polymeric material (especially a sulphonated polyaryletherketone and/or sulphone) which has at least some crystallinity or which is crystallizable with a means to increase its crystallinity. The ion-conducting material prepared may be used in a Membrane Electrode Assembly of a fuel cell.
    Type: Grant
    Filed: March 21, 2001
    Date of Patent: October 24, 2006
    Assignee: Victrex Manufacturing Limited
    Inventors: Mark Andrews, Richard F. Bridges, Peter Charnock, John N Devine, David J. Kemmish, John E Lockley, Brian Wilson
  • Ion exchange materials
    Publication number: 20040020764
    Abstract: A method of preparing an ion-conducting material, for example membrane, having reduced sensitivity to water includes a step of treating an ion-conducting polymeric material (especially a sulphonated polyaryletherketone and/or sulphone) which has at least some crystallinity or which is crystallisable with a means to increase its crystallinity. The ion-conducting material prepared may be used in a Membrane Electrode Assembly of a fuel cell.
    Type: Application
    Filed: December 19, 2002
    Publication date: February 5, 2004
    Inventors: Mark Andrews, Richard F. Bridges, Peter Charnock, John N Devine, David J. Kemmish, John E. Lockley, Brian Wilson