Issued Patents 2025
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12252942 | Rolling and sliding adaptive device for guiding and fixing drill pipe | Zetian Zhang, Heping Xie, Ru Zhang, Ling Chen, Heng Gao +6 more | 2025-03-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12252942 | Rolling and sliding adaptive device for guiding and fixing drill pipe | Zetian Zhang, Heping Xie, Ru Zhang, Ling Chen, Heng Gao +6 more | 2025-03-18 |