Issued Patents 2022
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11519264 | Method for obtaining gravity coefficients for orthogonally oriented accelerometer devices during measurement-while-drilling operations | Sheng Zhan | 2022-12-06 |
| 11465138 | Method for producing metal complex catalyst, and metal complex catalyst produced by same | Sunhwan Hwang, Kyong Yong Cha, Dong Hyun Ko, Ye Seul Hwang, Sang Jin Han +1 more | 2022-10-11 |
| 11370730 | Method for preparing 1,3-butadiene | Hyunseok Nam, Jun Han Kang, Kyong Yong Cha, Jaewon Jeong, Dong Hyun Ko +8 more | 2022-06-28 |
| 11372128 | Method and system for detecting downhole magnetic interference on measurement while drilling operations | Sheng Zhan, Fengtao Hu, Jinhai Zhao | 2022-06-28 |
| 11247195 | Method of preparing catalyst for oxidative dehydrogenation and method of performing oxidative dehydrogenation using catalyst | Sang Jin Han, Dong Hyun Ko, Kyong Yong Cha, Sun-Hwan Hwang | 2022-02-15 |
| 11225864 | Method for controlling MWD tool in bottom hole assembly | Sheng Zhan, Fengtao Hu, Jinhai Zhao | 2022-01-18 |
| 11225863 | Method for controlling a drilling system | Sheng Zhan, Fengtao Hu, Jinhai Zhao | 2022-01-18 |