Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7072852 | Method of scoring a self-targeting coupon | — | 2006-07-04 |
| 6237913 | Method and apparatus for redeeming a game piece | — | 2001-05-29 |
| 5996997 | Method and apparatus for redeeming a game piece | — | 1999-12-07 |
| 5931467 | Probability game | — | 1999-08-03 |
| 5855514 | Probability game with insured winning | — | 1999-01-05 |
| 5094458 | Redemption system for multi-piece games | — | 1992-03-10 |
| 5092598 | Multivalue/multiplay lottery game | — | 1992-03-03 |
| 4964642 | Variably scored skill game | — | 1990-10-23 |
| 4756532 | Playing surface with answers in first field providing answer in second field | — | 1988-07-12 |