Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9528042 | Drilling fluid additive composition and super high temperature super high density clay-free oil-in-water drilling fluid | Guancheng Jiang, Zhengqiang Deng, Yinbo He, Xianbin Huang, Fan Liu +8 more | 2016-12-27 |