Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10006179 | Crash cushion | Michael J. Buehler | 2018-06-26 |
| 9790653 | Energy absorbing vehicle barrier | Sean Thompson, Patrick A. Leonhardt | 2017-10-17 |
| 8974142 | Crash cushion | Michael J. Buehler | 2015-03-10 |
| 8469626 | Energy absorbing vehicle barrier | Sean Thompson, Patrick A. Leonhardt | 2013-06-25 |