Patents by Inventor Virgil Raymond Hester

Virgil Raymond Hester 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).

  • Silver doped catalysts for treatment of exhaust
    Patent number: 7541010
    Abstract: A method of making an exhaust treatment element includes washcoating a substrate with a slurry that includes a catalyst support material. At least some of the catalyst support material from the slurry may be transferred to the substrate, and silver metal (Ag) is dispersed within the catalyst support material.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: June 2, 2009
    Assignee: Caterpillar Inc.
    Inventors: Paul Worn Park, Virgil Raymond Hester, Christie Susan Ragle, Carrie L. Boyer