Issued Patents 2016
Showing 1–2 of 2 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, Yang Xuan +8 more | 2016-12-27 |
| 9481822 | Drilling fluid additive composition and high temperature resistant clay-free whole-oil-based drilling fluid | Guancheng Jiang, Zhengqiang Deng, Yinbo He, Xianbin Huang, Shuanglei Peng +1 more | 2016-11-01 |