Patents by Inventor Gail Lee Grigsby

Gail Lee Grigsby 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).

  • Diejack
    Patent number: 7144012
    Abstract: An option in the card game of Blackjack according to which the player pays a fee to buy the option to roll a single die and the outcome, a number between one and six, inclusive, is added to the total point value of the player's cards.
    Type: Grant
    Filed: December 27, 2005
    Date of Patent: December 5, 2006
    Inventor: Gail Lee Grigsby