Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11136639 | Bearing steel and manufacturing method therefor | Oh-Chul Kwon, Yoon Gil Choi, Chirl Soo Shin | 2021-10-05 |
| 11029411 | Method and apparatus for correcting satellite imaging time | Jae-Cheol Yoon, Dae Kwan Kim | 2021-06-08 |