Patents by Inventor James H. Robertson, Jr.

James H. Robertson, Jr. 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).

  • Whisker-reinforced ceramic roller guides
    Patent number: 5398858
    Abstract: Roller guides made of a ceramic matrix reinforced with monocrystalline whiskers with a cylinder-and-post configuration exhibit long useful operating lives when guiding metallic wires, braids, or ribbons.
    Type: Grant
    Filed: August 23, 1991
    Date of Patent: March 21, 1995
    Inventors: Tracy P. Dugan, James H. Robertson, Jr.