Patents by Inventor Craig R. Butler

Craig R. Butler 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).

  • Record album opener
    Patent number: D281141
    Type: Grant
    Filed: September 21, 1979
    Date of Patent: October 29, 1985
    Inventors: Craig R. Butler, Ede Scott