Patents by Inventor William L. Gray

William L. Gray 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).

  • Photocopier conver housing
    Patent number: D349921
    Type: Grant
    Filed: December 27, 1991
    Date of Patent: August 23, 1994
    Inventor: William L. Gray