Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11268377 | Measurement-while-drilling method and device for obtaining coal seam gas parameter | Enyuan Wang, Zhonghui Li, Jianchun Ou | 2022-03-08 |
| 10947842 | Measurement-while-drilling method and device for assessing outburst risk of coal seam | Enyuan Wang, Zhonghui Li, Jianchun Ou | 2021-03-16 |