Patents by Inventor Guy James MacDonald

Guy James MacDonald 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).

  • Golf ball tee
    Patent number: D431849
    Type: Grant
    Filed: August 29, 1997
    Date of Patent: October 10, 2000
    Inventor: Guy James MacDonald