Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D726362 | LED lighting device | Kyunghyun Kim, Youngju Choi, Donhee Lee | 2015-04-07 |
| 8733970 | Lighting apparatus with light controlling reflective layer | Kyunghyun Kim, Sangcheon Kim, Hankyu Cho | 2014-05-27 |