Issued Patents 2024
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11965389 | Patching construction method using a hydraulic variable-grade expansion tool for blocking during drilling | Xiaohua Zhu, Feilong Cheng | 2024-04-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11965389 | Patching construction method using a hydraulic variable-grade expansion tool for blocking during drilling | Xiaohua Zhu, Feilong Cheng | 2024-04-23 |