Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12286140 | Railcar for transport of steel coils with removable bi-level roof | Glenn A. Sandheinrich | 2025-04-29 |
| 11840268 | Railcar for transport of steel coils with removable bi-level roof | Glenn A. Sandheinrich | 2023-12-12 |
| 11643118 | Railcar for transport of steel coils with removable bi-level roof | Glenn A. Sandheinrich | 2023-05-09 |
| 9623881 | Valve interlock systems for use with railcars | Gregory Bertram, Ben Miller, Roger Dalske | 2017-04-18 |