Issued Patents 2025
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12359567 | Blast hole arrangement structure used for blasting for rheological soft-weak surrounding rock tunnel and construction method for rheological soft-weak surrounding rock tunnel | Xin Zhang, Jinshan Sun, Xiangping Zhang | 2025-07-15 |