Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11069858 | Amine-based compound and organic light emitting device comprising same | Jae Seung HA, Sung Kil Hong | 2021-07-20 |
| 10968230 | Spiro-structured compound and organic electronic device comprising same | Yongbum Cha, Sung Kil Hong, Jungbum Kim, Dong Uk Heo | 2021-04-06 |
| 10957857 | Multicyclic compound and organic light emitting device including the same | Yongbum Cha, Sang Young Jeon, Sung Kil Hong | 2021-03-23 |