Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10018038 | Drilling type sidewall coring apparatus | Yongren Feng, Zhibin Tian, Tao-Cheng Lu, Liping Liu, Guiqing Hao +4 more | 2018-07-10 |
| 9982816 | Pup joint for releasing sidewall contact of stratigraphic test device and apparatus | Xiaofei Qin, Yongren Feng, Wanguang Song, Lei Wang | 2018-05-29 |