Patents by Inventor Leigh T. Doxsee

Leigh T. Doxsee 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).

  • Acrylic containing friction materials
    Patent number: 4866107
    Abstract: The addition of fibrillated acrylic fiber to non-asbestos type friction material compositions provides marked improvement in the flexural strength, stiffness and structural integrity of preforms used in the manufacture of friction elements. The consequent handling characteristics of the preform provide improvement in the manufacturing of the friction element.
    Type: Grant
    Filed: July 26, 1988
    Date of Patent: September 12, 1989
    Assignee: American Cyanamid Company
    Inventors: Leigh T. Doxsee, Robert E. Evans, Michael P. O'Toole