Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10941659 | I-shaped water-retaining dam for underground reservoir in coal mine | Haochen Zhang, Xiangsong Kong | 2021-03-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10941659 | I-shaped water-retaining dam for underground reservoir in coal mine | Haochen Zhang, Xiangsong Kong | 2021-03-09 |