Patents by Inventor Donald Greaves

Donald Greaves 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: D280492
    Type: Grant
    Filed: May 23, 1983
    Date of Patent: September 10, 1985
    Inventors: Donald Greaves, Michael Witt