Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE37570 | Wheel-activated vehicle restraint system | Scott L. Springer, Norbert Hahn, Hans Van De Wiel, Frank De Beer | 2002-03-05 |
| 5762459 | Wheel-activated vehicle restraint system | Scott L. Springer, Norbert Hahn, Hans Van De Wiel, Frank De Beer | 1998-06-09 |