Issued Patents 2020
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10858571 | High-temperature retarder suitable for oil and gas well cementation, preparation method thereof and cementing slurry | Chengwen Wang, Yucheng Xue, Ruihe Wang, Jinsheng Sun, Yong Li +1 more | 2020-12-08 |
| 10854450 | Methods for repairing substrate lattice and selective epitaxy processing | Xiao Wang, Lin Xu, Guan Nan Li | 2020-12-01 |
| 10768530 | Developing apparatus and developing method thereof | Kefang Wu, Jiarong XU, Yunwei Li, Chaogun Wang, Zhenyu Wang +1 more | 2020-09-08 |