Patents by Inventor Gregory MacKeen

Gregory MacKeen 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 tee
    Patent number: D695861
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: December 17, 2013
    Inventor: Gregory MacKeen