Issued Patents 2018
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10165415 | Method and apparatus for geomagnetic signal processing | Sang-Su Kim, Young Wn Kwun, Ho-Jun Lee, Young-Mi Son | 2018-12-25 |
| 10041861 | Apparatus and method for testing drilling efficiency of drill bit | Dae Young Shin, Jae Wook Lee, Joo Young Oh, Jin Young Park, Ki Beom Kwon +1 more | 2018-08-07 |
| 10027771 | System and method for measuring position | Sung Hwan Kim, Jae-Wook Sim, Moo-Sung Ji | 2018-07-17 |
| 10006252 | Drill bit including button array having different radii extending from center of head section | Dae Young Shin, Jin YANG, Kyoung-Il Moon, Ki Beom Kwon, Chang-Heon Song +1 more | 2018-06-26 |