Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9481822 | Drilling fluid additive composition and high temperature resistant clay-free whole-oil-based drilling fluid | Guancheng Jiang, Zhengqiang Deng, Xianbin Huang, Fan Liu, Shuanglei Peng +1 more | 2016-11-01 |
| 9365762 | Copolymer of dimer acid-organic amine and shear strength improving agent of water in oil emulsion drilling fluid and drilling fluid | Guancheng Jiang, Xianbin Huang, Zhengqiang Deng | 2016-06-14 |