Issued Patents 2019
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10421721 | Heterocyclic compound and organic light emitting device comprising same | Yongbum Cha, Sung Kil Hong, Sang Duk SUH | 2019-09-24 |
| 10230056 | Heterocyclic compound and organic light emitting element comprising same | Yongbum Cha, Seongmi Cho | 2019-03-12 |
| 10193076 | Amine compound and organic light emitting element comprising same | Yongbum Cha, Sung Kil Hong | 2019-01-29 |