Patents by Inventor Robert D Hamman

Robert D Hamman 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).

  • System and method for playing a lottery-type game
    Patent number: 7155014
    Abstract: A system for playing a lottery-type game includes a play generator, a win generator, and an evaluator. The evaluator receives the playfile from the play generator and a winning a number from the win generator and, in response to player input, determines a win/loss result. The evaluator may perform a record-by-record decryption of the playfile for each game play.
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: December 26, 2006
    Assignee: SCA Promotions, Inc.
    Inventors: Robert D Hamman, Kenneth R Westerlage, William C Kennedy