Issued Patents 2018
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D819226 | Guardrail | Terril Johnson | 2018-05-29 |
| 9963854 | Guardrail with tapered vertical channel post | John M. Teter, Dennis D. Wetterich, Timothy N. Zier, Terril Johnson | 2018-05-08 |
RM
Robert J. Madera
Overall (2018): #108,109 of 503,207Top 25%
2
Patents 2018