Issued Patents 2020
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10829679 | Micro-nanometer plugging anti-collapse drilling fluid and preparation method and use thereof | Yang Bai, Pingya Luo, Cheng Li, Yan Cheng, Guojun Li | 2020-11-10 |
| 10829681 | Modified nano-silica plugging agent, water-based drilling fluid, and preparation method and use thereof | Yang Bai, Pingya Luo, Yan Cheng, Cheng Li, Guojun Li | 2020-11-10 |
| 10670625 | Method for error correction in scanning probe microscopy | Xiaoguang Zhang, Xianqi LI, An Li, Yunmei Chen | 2020-06-02 |
| 10533122 | Strong plugging drilling fluid composition and preparation method thereof, and use thereof | Yang Bai, Cheng Li, Guojun Li, Yan Cheng, Guancheng Jiang +2 more | 2020-01-14 |