Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6474650 | Method of simulation time travel in a card game | — | 2002-11-05 |
| 6352262 | Method of conducting simultaneous gameplay using stackable game pieces | — | 2002-03-05 |
| 4936585 | Method of manipulating and interpreting playing pieces | John W. Cooper | 1990-06-26 |