Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6116603 | Apparatus and method of playing a math capturing and recapturing game | — | 2000-09-12 |
| 6056553 | Apparatus for math teaching and self-learning | — | 2000-05-02 |
| 5556102 | Apparatus and method of playing a word composition game where compass direction assigned to each player and the time when the game is played affects game play | — | 1996-09-17 |