Patents by Inventor Philip L. Mitchell

Philip L. Mitchell 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).

  • Patent number: D246936
    Type: Grant
    Filed: November 15, 1976
    Date of Patent: January 10, 1978
    Inventor: Philip L. Mitchell