Patents by Inventor Ritchie A. Snyder

Ritchie A. Snyder 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).

  • Smudge free graphite coated polymeric substrate and a method for preparing the same
    Patent number: 4256806
    Abstract: A three component mixture of graphite, a liquid and a PTFE fine powder dispersion which has a homogeneous appearance and can be applied onto a substrate to provide a clean, glazed coating that does not easily shed graphite. Suitable substrates include: polytetrafluoroethylene filament; PTFE membrane; PTFE filament filled with graphite; polypropylene thread; polyaramide fibers.
    Type: Grant
    Filed: July 5, 1979
    Date of Patent: March 17, 1981
    Assignee: W. L. Gore & Associates, Inc.
    Inventor: Ritchie A. Snyder