Patents by Inventor Duncan R. Craig

Duncan R. Craig 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).

  • Hockey goal--"the judge"
    Patent number: 5947846
    Abstract: A score-indicating hockey goal assembly provides a television-viewable visual signal when a score is indicated.
    Type: Grant
    Filed: November 19, 1997
    Date of Patent: September 7, 1999
    Inventor: Duncan R. Craig