Patents by Inventor Anthony J. Stewart

Anthony J. Stewart 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: D251721
    Type: Grant
    Filed: November 1, 1976
    Date of Patent: May 1, 1979
    Inventors: Anthony J. Stewart, Darel H. Porter