Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10119231 | Energy absorbing guardrail system having a modified first upper post | John R. Rohde, Dean L. Sicking, John D. Reid | 2018-11-06 |
| 9963844 | Energy absorbing guardrail system | John R. Rohde, Dean L. Sicking, John D. Reid | 2018-05-08 |