Patents by Inventor Douglas W. Smith

Douglas W. Smith 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: D260898
    Type: Grant
    Filed: January 16, 1980
    Date of Patent: September 22, 1981
    Assignee: The Toro Company
    Inventors: Robert Chieda, Robert W. Johnson, Douglas W. Smith, Eugene J. Casey, Jr.