Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11203910 | Casing hanger and annulus sealing device running tool for deepwater drilling, and method for using the same | Yanbin Wang, Jun Fang, Jing Zeng | 2021-12-21 |
| 10910135 | Surge arrester and associated manufacturing method | Chun-Lin Li, Jian He, Maoshan Niu, Ektor Sotiropoulos, Felix Greuter +2 more | 2021-02-02 |