Issued Patents 2018
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10150903 | Composition and use therof, oil-based drilling fluid and a method for raising shearing force of oil-based drilling fluid | Yongxue Lin, Xianguang Wang, Zhoujun LI, Xiuzhen Han, Xiaohua Yang +3 more | 2018-12-11 |