Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7717641 | Bollard type barrier assembly | — | 2010-05-18 |
| D598575 | Bollard | — | 2009-08-18 |
| 7481599 | Bollard type barrier assembly | — | 2009-01-27 |
| 6997638 | Anti-terrorist road block | Clifford J. Hensley, Robert C. Herrin, Robert L. Sims | 2006-02-14 |
| 4919563 | Vehicle parking or passageway security barrier | — | 1990-04-24 |