Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11242749 | Control structure for rib spalling of coal wall with large mining height based on flexible reinforcement and construction equipment therefor | Zhiheng Cheng | 2022-02-08 |
| 10865641 | Asymmetric coordinated support device for gob side entry based on combination of flexibility and rigidity | Zhiheng Cheng | 2020-12-15 |