Issued Patents 2022
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11414991 | System and method for monitoring bearing compression rate of filler in coal mine gob area | Yang Ju, A. J. S. (Sam) Spearing, Meng Li, Nan Zhou, Weiqing Zhang | 2022-08-16 |
| 11377952 | Method for radially mining open-pit end slope pressed coal | Nan Zhou, Hao Yan, Meng Li, Jiaqi Wang | 2022-07-05 |
| 11339658 | Method for recovering room-type coal pillars by cemented filling of reserved roadways | Nan Zhou, Meng Li, Hao Yan, Hengfeng Liu | 2022-05-24 |
| 11313226 | Internally injected replacement support room-type coal pillar recovery method | Nan Zhou, Jiaqi Wang, Kai Sun, Meng Li | 2022-04-26 |