Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6604976 | Segmental toy game | — | 2003-08-12 |
| 6152449 | Combined sticker and invisible ink game | — | 2000-11-28 |
| 5261703 | Greeting card with compatible puzzle message | — | 1993-11-16 |
| 4586714 | Puzzle game | Leon G. Lenkoff, Patrick J. Garry | 1986-05-06 |