Patents by Inventor Roger D. Shea

Roger D. Shea 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: D312721
    Type: Grant
    Filed: July 3, 1986
    Date of Patent: December 11, 1990
    Inventor: Roger D. Shea