Issued Patents 2022
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11525318 | Motor bypass valve | Zhengxin Zhang, Wei-Chuan Chen, Zhenyu Chen, Maria Neves Carrasquilla | 2022-12-13 |
| 11480049 | Drilling mode sequence control | Wei Chen, Rongbing Chen, Zhengxin Zhang, Lucian Johnston | 2022-10-25 |
| 11242741 | Fatigue analysis procedure for drill string | Wei Chen, Yani Dong, Geng Yun, Sujian Huang | 2022-02-08 |