Patents by Inventor Peter Anthony Trew

Peter Anthony Trew 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).

  • Membrane electrode assembly having an adhesive layer impregnating through an electrocatalyst layer and into a first gas diffusion substrate
    Patent number: 9083012
    Abstract: A membrane electrode assembly comprises an ion-conducting membrane; a first electrocatalyst layer having a surface facing the membrane; a first electronically-conducting porous gas diffusion substrate facing the other surface of the first electrocatalyst layer; and a first film member interposed between the membrane and the first electrocatalyst layer. The first electrocatalyst layer has an edge region and a central region, and the first film member contacts the edge region and not the central region. A first adhesive layer is present on the surface of the first film member facing the first electrocatalyst layer, and the first adhesive layer adheres the first film member to the first electrocatalyst layer, impregnates through the first electrocatalyst layer, and impregnates into the first gas diffusion substrate.
    Type: Grant
    Filed: September 22, 2005
    Date of Patent: July 14, 2015
    Assignees: JOHNSON MATTHEY FUEL CELLS LIMITED, GENERAL MOTORS CORPORATION
    Inventors: Catherine Helen de Rouffignac, Hubert Gasteiger, Adam John Hodgkinson, Peter Anthony Trew, Bhaskar Sompalli, Susan Yan, Brian Litteer
  • Membrane electrode assembly
    Patent number: 8399145
    Abstract: A membrane electrode assembly having a peripheral edge region and a central region. The membrane electrode assembly comprises an ion-conducting membrane, first and second electrocatalyst layers disposed either side of the ion-conducting membrane, and first and second gas diffusion layers disposed either side of the first and second electrocatalyst layers respectively. The membrane electrode assembly further comprises an edge protection member, the edge protection member comprising a film layer, a bonding layer, and one or more additives selected from the group consisting of free radical decomposition catalyst, self regenerating antioxidant, hydrogen donors (H-donor) primary antioxidant, free radical scavenger secondary antioxidant, oxygen absorbers (oxygen scavenger) and elemental palladium.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: March 19, 2013
    Assignee: Johnson Matthey Fuel Cells Limited
    Inventors: David Edward Barnwell, Thomas Robertson Ralph, Peter Anthony Trew
  • MEMBRANE ELECTRODE ASSEMBLY
    Publication number: 20100209811
    Abstract: A membrane electrode assembly having a peripheral edge region and a central region. The membrane electrode assembly comprises an ion-conducting membrane, first and second electrocatalyst layers disposed either side of the ion-conducting membrane, and first and second gas diffusion layers disposed either side of the first and second electrocatalyst layers respectively. The membrane electrode assembly further comprises an edge protection member, the edge protection member comprising a film layer, a bonding layer, and one or more additives selected from the group consisting of free radical decomposition catalyst, self regenerating antioxidant, hydrogen donors (H-donor) primary antioxidant, free radical scavenger secondary antioxidant, oxygen absorbers (oxygen scavenger) and elemental palladium.
    Type: Application
    Filed: September 18, 2008
    Publication date: August 19, 2010
    Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
    Inventors: David Edward Barnwell, Thomas Robertson Ralph, Peter Anthony Trew