Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10184338 | Roof support monitoring for longwall system | Paul M. Siegrist, Nigel J. Buttery | 2019-01-22 |
| 9739148 | Roof support monitoring for longwall system | Paul M. Siegrist, Nigel J. Buttery | 2017-08-22 |