Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6984173 | Slot machine using a count valve to award bonus game | Robert J. Piechowiak | 2006-01-10 |
| 6749501 | System and method of playing a card game | — | 2004-06-15 |
| 6726561 | System and method of playing a card game | — | 2004-04-27 |
| 6270412 | Slot machine with symbol save feature | James P. Jackson | 2001-08-07 |
| 6168523 | Bonus award feature in a gaming machine | Robert J. Piechowiak | 2001-01-02 |
| 6012982 | Bonus award feature in linked gaming machines having a common feature controller | Robert J. Piechowiak | 2000-01-11 |
| 5997401 | Slot machine with symbol save feature | — | 1999-12-07 |
| 5580309 | Linked gaming machines having a common feature controller | Robert J. Piechowiak | 1996-12-03 |