Patents by Inventor Rex McGuire

Rex McGuire 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).

  • Non-electronic sound amplifier
    Patent number: D310530
    Type: Grant
    Filed: September 21, 1988
    Date of Patent: September 11, 1990
    Inventor: Rex McGuire