Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5674076 | Hand-held sound generating device | Zeb Billings, Ralph Dyck, Marc Jorgenson | 1997-10-07 |
| 4265449 | Simulated bowling game | Lawrence L. Reiner, Michael Marra | 1981-05-05 |