Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10655465 | Method for rock burst prevention by active support reinforcement and active pressure relief | Heng Zhang, Yang Liu, Ding Li | 2020-05-19 |
| 10612379 | Combined automatic anti-explosion method for gas drainage pipeline | Heng Zhang, Yang Liu, Ding Li | 2020-04-07 |