Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11603488 | Process for preparing metal-chelate retarder by sol-gel method | Xiaowei Cheng, Shuxun Zhao, Yang Yu, Zhihui Lin, Gaoyin Zhang +10 more | 2023-03-14 |
| 11345844 | Oil well cement slurry high-temperature suspension stabilizer prepared from oil-based shale drilling cuttings | Xiaowei Cheng, Gaoyin Zhang, Shunxiang Luo, Sheng-Po Huang, Kaiqiang Liu +5 more | 2022-05-31 |