Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12385144 | Anti-corrosion wear-resistant drill pipe and preparation method thereof | Dezhi Zeng, Jiancheng Luo, Qinying Wang, Hanwen Zhang, Yuchen Xi +2 more | 2025-08-12 |
| 12325826 | High-flow-conductivity proppant and preparation method thereof | Dezhi Zeng, Hanwen Zhang, Xi Wang, Jiancheng Luo, Chunyan Zheng +3 more | 2025-06-10 |
| 12196042 | Wear-resistant and collision-resistant polycrystalline diamond compact (PDC) drill bit with rostriform teeth and plurality of blades | Tiejun Lin, Chengsong Yang, Hao Yu, Jianhua Guo, Jiachang Nie +7 more | 2025-01-14 |