Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11945476 | Railcar cold formed center sill with stiffness enhancing structure | Douglas M. Jenkins | 2024-04-02 |
| 11554797 | Handheld solenoid activation remote for a railroad car door | Cory Copeland | 2023-01-17 |
| 11338831 | Railcar having cold formed center sill with stiffness enhancing structure | Douglas M. Jenkins | 2022-05-24 |
| 9862393 | Open top hopper railcar with biased door seal and enlarged contoured end door | David A. Lohr | 2018-01-09 |
| 9096238 | Open top hopper railcar with biased door seal and enlarged contoured end door | David A. Lohr | 2015-08-04 |
| 8640631 | Side contoured open top hopper railcar with biased door seal and enlarged contoured end door | David A. Lohr | 2014-02-04 |