Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11187250 | Automatic cleaning device for suction port of electric submersible pump | Ruyi Gou, Weiyu Chen, Pingli Liu, Zhifeng Luo, Juan Du | 2021-11-30 |
| 11174425 | Carbonate reservoir filtration-loss self-reducing acid | Weiyu Chen, Zhifeng Luo, Juan Du, Pingli Liu, Nianyin Li +1 more | 2021-11-16 |
| 10982131 | Phase transition material fluid and proppant formed therefrom | Shubao HU, Yong Yang, Guohua Liu, Mengmeng Ning, Kun XU +4 more | 2021-04-20 |