Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10374123 | UV light emitting device | Chang Seok Han, Woo Chul Kwak, Jung Hwan Hwang, Chang Geun Jang | 2019-08-06 |
| 10177273 | UV light emitting device | Chang Suk Han, Hwa Mok Kim, Mi So Ko, A Ram Cha Lee | 2019-01-08 |