Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D332982 | Game ball | Richard O. Norman, David Chamberlain | 1993-02-02 |
| 5108108 | Tossable strategy-type game with playing surface | Richard O. Norman, David Chamberlain | 1992-04-28 |
| 4953870 | Tossable strategy-type game with tri-dimensional playing surface | Richard O. Norman, David Chamberlain | 1990-09-04 |
| D308994 | Game ball | Richard O. Norman, David Chamberlain | 1990-07-03 |
| D306469 | Game ball with textured surface | Richard O. Norman, David Chamberlin | 1990-03-06 |
| D306470 | Game ball with textured surface | Richard O. Norman, David Chamberlin | 1990-03-06 |