Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6984174 | Method and apparatus for a player-controllable bonus game | Lee E. Cannon, Brian Johnson, Michael White | 2006-01-10 |
| 6964416 | Method of playing a matching bonus game | Monica A. McClintic, Michael T. Tessmer, William E. Vorias | 2005-11-15 |
| 6869361 | System, apparatus and method employing controller for play of shared bonus games | David J. Sharpless, Jason DeGrandmaison, Michael T. Tessmer | 2005-03-22 |
| 6855054 | Gaming methods and apparatus using interchangeable symbols | Michael White, John C. Philipp, Brian Johnson, James Coleman | 2005-02-15 |