Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8182169 | Energy absorbing vehicle barrier | Sean Thompson, Patrick A. Leonhardt, Donald C. Pyde | 2012-05-22 |
| 7950870 | Energy absorbing vehicle barrier | Sean Thompson, Patrick A. Leonhardt, Donald C. Pyde | 2011-05-31 |