Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5403999 | Telecommunications systems for lotteries | John K. Entenmann, Eric Edward Kampmeier, Barry L. Posterick | 1995-04-04 |
| 4996705 | Use of telecommunications systems for lotteries | John K. Entenmann, Eric Edward Kampmeier, Barry L. Posterick | 1991-02-26 |