Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11067392 | Anchor bolt length determination method based on monitoring of roof rock stratum horizontal extrusion force | Yunliang Tan, Kai Zhou, Tongbin Zhao | 2021-07-20 |
| 10969314 | Device and method for anchor bolt (cable) supporting structure test and anchoring system performance comprehensive experiment | Tongbin Zhao, Chunlin Li, Minglu Xing, Yunliang Tan, Chen Zhao +3 more | 2021-04-06 |