Patents by Inventor Jude Reynold Foulds

Jude Reynold Foulds 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 and apparatus for determining the true stress and true strain behavior of a ductile polymer
    Patent number: 6267011
    Abstract: A small punch test apparatus is used to determine true stress and true strain in a ductile polymeric material as it undergoes deformation by the punch head. The information gathered can be used comparatively to assess the acceptability of a body implant subjected to sterilization against similar information obtained on another implant of the same polymer already known to be acceptable.
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: July 31, 2001
    Assignee: Exponent, Inc.
    Inventors: Steven Michael Kurtz, Charles William Jewett, Jude Reynold Foulds