Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11473427 | Physical simulation test method for detecting position of ponding goaf in excavation | Guorui Feng, Jiaqing Cui, Haina Jiang, Zhen Li, Cheng Wei Song +3 more | 2022-10-18 |
| 11203095 | Flexible sanding device for cylinder rock specimen | Zhixin Jin, Chunwang Zhang, Guorui Feng, Xuanmin Song, Yujiang Zhang +2 more | 2021-12-21 |
| 10809417 | Three-dimensional analog simulation test system for gas-liquid countercurrent in abandoned mine goaf | Guorui Feng, Chunwang Zhang, Zhixin Jin, Rui Gao, Zhen Li +3 more | 2020-10-20 |