Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8262033 | Derail assembly | — | 2012-09-11 |
| 7909293 | Low profile derail | — | 2011-03-22 |
| 6966146 | Two directional crossing gate arm protection assembly | — | 2005-11-22 |
| 6327818 | Crossing gate arm protection assembly | — | 2001-12-11 |
| 6308638 | Wheel stop for an overhead vehicle | — | 2001-10-30 |
| 6202564 | Double end derail | Lonnie Lee Hart | 2001-03-20 |
| 6178893 | Adjustable hinged derail | — | 2001-01-30 |
| 6168120 | Operator for a railroad implement | — | 2001-01-02 |
| 6155178 | Wheel stop for an overhead vehicle | — | 2000-12-05 |
| 6105906 | Lightweight and ultra-lightweight portable derails | Kevin Hertel | 2000-08-22 |