Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4956942 | Window adjustment mechanism | Stephen P. Lisak | 1990-09-18 |
| 4802067 | Headlight aiming and leveling device | Francis E. Ryder, Stephen P. Lisak | 1989-01-31 |
| 4735203 | Retractable lancet | Francis E. Ryder, Stephen P. Lisak | 1988-04-05 |