Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8616948 | Multi-layered electronic puzzle | John M. Sherin | 2013-12-31 |
| 8308537 | Multi-layered electronic puzzle | John M. Sherin | 2012-11-13 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8616948 | Multi-layered electronic puzzle | John M. Sherin | 2013-12-31 |
| 8308537 | Multi-layered electronic puzzle | John M. Sherin | 2012-11-13 |