Patents by Inventor Earl R. Holland

Earl R. Holland 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).

  • Rotary brush
    Patent number: D403864
    Type: Grant
    Filed: May 19, 1994
    Date of Patent: January 12, 1999
    Inventors: Richard A. Holland, Earl R. Holland