Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10487654 | Anchoring method utilizing self-drilling and self-anchoring extendable anchor rod applicable to soft and weak coal rocks | Nong Zhang, Changliang Han, Ke Yang | 2019-11-26 |
| 10280750 | Full-roadway full-process full-cross-section surface deformation monitoring device and method | Nong Zhang, Changliang Han, Dongjiang Pan | 2019-05-07 |