Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12398640 | Method for calculating wellbore friction resistance of foam drainage gas production well | Chengcheng Luo, Yonghui Liu, Yu Shi, Yang Liu, Haibin Cai +3 more | 2025-08-26 |
| 12343819 | Flux-cored welding strip and welding flux used in combination for submerged arc welding of duplex stainless steel, and preparation methods and use thereof | Kai Xu, Xiao Guo, Wei Feng, Shubin Huo, Shaowei Chen +6 more | 2025-07-01 |
| 12311463 | Narrow gap laser-TIG arc hybrid welding apparatus and method | Ruisheng HUANG, Bin TENG, Yan Zhang, Kai Xu, Dakui FEI +3 more | 2025-05-27 |