Issued Patents 2021
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11162010 | Nanometer plugging water-based drilling fluid and preparation method and use thereof | Yang Bai, Pingya Luo, Guojun Li, Cheng Li, Yan Cheng | 2021-11-02 |
| 10996611 | Chip and replaceable unit of image forming apparatus | Haixiong LI, Aiguo Yin | 2021-05-04 |
| 10989576 | Method and system for obtaining micro-nano level fracture model and evaluating plugging performance of drilling fluid | Yang Bai, Yan Cheng, Pingya Luo, Hongbo Li, Cheng Li +3 more | 2021-04-27 |
| 10989639 | Experimental test method for subcritical propagation rate of rock fractures based on triaxial stress—strain curve | Bin Yang, Ying Zhong, Yang Yang, Jiping She, Guanchang Pan +2 more | 2021-04-27 |
| 10962354 | Selection method of loss control materials for lost circulation control in fractured reservoirs based on photoelastic experiments | Chengyuan Xu, Xiaopeng Yan, Yili Kang, Haoran Jing, Jingyi Zhang +3 more | 2021-03-30 |
| 10964529 | Method for cleaning lanthanum gallium silicate wafer | Dongmei Li, Lei Zhou, Shengfa Liang, Xiaojing Li, Changqing Xie +1 more | 2021-03-30 |