Patents by Inventor Vivian J. Timian

Vivian J. Timian 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).

  • Method of ultrasonically welding articles of porous polytetrafluoroethylene
    Patent number: 5746856
    Abstract: A method of welding together overlapped edges of porous PTFE sheet materials by applying ultrasonic energy wherein the overlapped edges remain porous after welding. Composite articles made by the welding process are also described.
    Type: Grant
    Filed: April 24, 1996
    Date of Patent: May 5, 1998
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: William J. Hendershot, Michael L. McDonald, Vivian J. Timian