Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10620410 | Zoom lens system | — | 2020-04-14 |
| 10562593 | Frictional resistance-reducing device and ship including same | Sang Min Kim, Soon Ho Choi, Jong-oh Kwon, Boo Ki Kim, Hee Taek Kim +2 more | 2020-02-18 |