Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11882634 | LED lighting apparatus and operating method thereof | — | 2024-01-23 |
| 11805580 | LED driving device and lighting device including the same | Sangcheol Bong, Hyunjung Kim, Jongkwan LEE, June JANG, Minsoo Han | 2023-10-31 |
| 11528787 | Correlated color temperature changeable lighting apparatus | Hyunjung Kim | 2022-12-13 |