Patents by Inventor Michael P. Kienzle

Michael P. Kienzle 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).

  • Electrically conductive polytetrafluoroethylene article
    Patent number: 5904978
    Abstract: An electrically conductive composite article is provided having a polytetrafluoroethylene fibril matrix and a predetermined volume. The electrically conductive composite article comprises electrically conductive particles, and electrically nonconductive, energy expanded hollow polymeric particles. The volume percent of the electrically conductive particles is at least 20 volume percent. The electrically conductive composite article is continuously electrically conductive throughout its entire structure. Accordingly, electric current freely flows through the composite article due to the low resistivity of the article. The electrically conductive composite article may additionally include an elastomer material disposed within the article in a discontinuous fashion.
    Type: Grant
    Filed: December 15, 1995
    Date of Patent: May 18, 1999
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: James R. Hanrahan, Michael P. Kienzle, Mark S. Spencer