Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11360737 | Method and apparatus for providing speech service | Guanghao Shen, Ruisheng Wu | 2022-06-14 |
| 9631444 | Kick information identification apparatus and method assisted for wellbore pressure control during horizontal drilling | Baojiang Sun, Xiaohui Sun, Zhiyuan Wang | 2017-04-25 |