Issued Patents 2020
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10647902 | Temporary plugging agent for drilling fluid and preparation method thereof, and water-based drilling fluid and use thereof | Weian Huang, Jingwen Wang, Ming Lei, Jiaqi Zhang, Kaihe Lv +2 more | 2020-05-12 |