Patents by Inventor Calvin Bushnell

Calvin Bushnell 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).

  • Porous carbon body with increased wettability by water
    Patent number: 5840414
    Abstract: Solid polymer membrane fuel cell product water which forms on the oxidant side of the membrane is removed from the active area of the cells in a fuel cell power plant by being absorbed into and wicked away from the active area by a porous carbon body which contacts the membrane. The carbon body may be an oxidant reactant flow field plate. The pores in the carbon body are partially filled with metal oxide granules which impart increased wettability and water absorption capacity to the carbon body.
    Type: Grant
    Filed: November 15, 1996
    Date of Patent: November 24, 1998
    Assignee: International Fuel Cells, Inc.
    Inventors: John A. S. Bett, Douglas J. Wheeler, Calvin Bushnell