Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5722657 | Irregular polyhedron puzzle game with pieces of asymmetric shapes | — | 1998-03-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5722657 | Irregular polyhedron puzzle game with pieces of asymmetric shapes | — | 1998-03-03 |