Issued Patents 2022
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11519049 | Low temperature resistant oil casing having high strength and high toughness, and manufacturing method thereof | Wen Sun, Xiaoming Dong | 2022-12-06 |
| 11459643 | High-strength and high-toughness perforating gun tube and manufacturing method therefor | Xiaoming Dong, Cunyao Zhao | 2022-10-04 |
| 11299411 | Bio-enhanced deodorization equipment | Dan Wei, Zijun Tian, Huan-Ying Lu, Tingting Zhao | 2022-04-12 |
| 11293072 | Process for on-line quenching of seamless steel tube using residual heat and manufacturing method | Yaoheng Liu, Ke Xu | 2022-04-05 |