Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10378181 | Guard rail with insert | Terril Johnson, Christian D. Ritchie, Gary C. Bryant | 2019-08-13 |
| 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 |
| 9487080 | Draining system for fuel tank | John M. Teter | 2016-11-08 |
| 8905172 | Integrated service center | Joshua C. Bedyk, Jeffrey Paul Sayre, Adam M. Plecker | 2014-12-09 |