Issued Patents 2025
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12252942 | Rolling and sliding adaptive device for guiding and fixing drill pipe | Zetian Zhang, Heping Xie, Ru Zhang, Yihang Li, Heng Gao +6 more | 2025-03-18 |
| 12228217 | Magnetic pressure retaining control device | Heping Xie, Mingzhong Gao, Guikang Liu, Bo Yu, Cong Li +5 more | 2025-02-18 |
| 12221849 | Internal blowout-prevention gas-retaining connector for mine | Mingzhong Gao, Jianan Li, Cong Li, Zhiqiang He, Le Zhao +3 more | 2025-02-11 |
| 12216021 | Simulation device for magnetic closing of flap valve | Mingzhong Gao, Heping Xie, Guikang Liu, Cong Li, Bo Yu +7 more | 2025-02-04 |