Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10655468 | Horizon monitoring for longwall system | Paul M. Siegrist, Nigel J. Buttery | 2020-05-19 |
| 10378356 | Horizon monitoring for longwall system | Paul M. Siegrist, Nigel J. Buttery | 2019-08-13 |
| 10082026 | Horizon monitoring for longwall system | Paul M. Siegrist, Nigel J. Buttery | 2018-09-25 |
| 9726017 | Horizon monitoring for longwall system | Paul M. Siegrist, Nigel J. Buttery | 2017-08-08 |