Patents by Inventor Robert E. Ritcey

Robert E. Ritcey 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: D342448
    Type: Grant
    Filed: June 21, 1991
    Date of Patent: December 21, 1993
    Inventor: Robert E. Ritcey