Issued Patents All Time
Showing 51–57 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10910567 | Double spiro-type compound and organic light emitting diode comprising same | Jae Seung HA, Sung Kil Hong | 2021-02-02 |
| 10730812 | Double spiro compound and organic light-emitting element comprising same | Yongbum Cha, Jin Joo Kim | 2020-08-04 |
| 10686138 | Compound and organic light emitting diode comprising same | Jae Seung HA, Wanpyo Hong | 2020-06-16 |
| 10421721 | Heterocyclic compound and organic light emitting device comprising same | Yongbum Cha, Jin Joo Kim, Sung Kil Hong | 2019-09-24 |
| 10418561 | Organic compound, and organic light emitting diode and organic light emitting display device including the same | Jung Keun Kim, Do-Han Kim, Jeong-Dae Seo, Ji-Cheol SHIN, Heung-Woo Choi +3 more | 2019-09-17 |
| 9972785 | Spiro-type compound and organic light emitting element comprising same | Yongbum Cha, Jin Joo Kim, Jungbum Kim | 2018-05-15 |
| 9960357 | Spiro-type compound and organic light emitting element comprising same | Yongbum Cha, Jin Joo Kim, Jungbum Kim | 2018-05-01 |