Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9995461 | Optical lens, light emitting device, and lighting device | Chang Hyuck Lee, Hyun Ho Choi, Chang Gyun Son | 2018-06-12 |
| 9360186 | Optical lens, light emitting device array module having the same and light apparatus thereof | Hyun Ho Choi, ChangGyun Son, Chang Hyuck Lee | 2016-06-07 |