Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7887415 | Random payout while maintaining the progressive prize pool at the predetermined average pool size | Richard E. Michaelson, William K. Bertram | 2011-02-15 |
| 7871328 | Random pay using non-gaming revenue | Richard E. Michaelson, William K. Bertram | 2011-01-18 |