Patents by Inventor Diane J. L. Kemper

Diane J. L. Kemper 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).

  • Plate hanger
    Patent number: D259765
    Type: Grant
    Filed: April 26, 1978
    Date of Patent: July 7, 1981
    Inventor: Diane J. L. Kemper
  • Plate holder
    Patent number: D276961
    Type: Grant
    Filed: December 14, 1981
    Date of Patent: January 1, 1985
    Inventor: Diane J. L. Kemper