Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8491216 | Vehicle crash attenuator apparatus | Gerrit A. Dyke | 2013-07-23 |
| 8424849 | Guardrail | — | 2013-04-23 |
| 8353499 | Roadway guardrail system | Steven J. Conway, Frederick Mauer, IV | 2013-01-15 |
| 8246013 | Cable guardrail system and hanger | Frederick Mauer, IV, Steven J. Conway | 2012-08-21 |
| 8177194 | Frangible post for guardrail | — | 2012-05-15 |
| 7926790 | Impact slider for guardrail | — | 2011-04-19 |
| 7878485 | Roadway guardrail system | Steven J. Conway, Frederick Mauer, IV | 2011-02-01 |
| 7837415 | Retaining wall and blocks for the formation thereof | Chris James Allington, Timmothy John Day, Nigel Gary Maxey | 2010-11-23 |
| 7699293 | Guardrail | — | 2010-04-20 |