Issued Patents 2019
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10177319 | Nitrogen-containing polycyclic compound and organic light emitting element using same | Young-Seok NO, Kee Yong Kim, Jin-Seok Choi, Dae-Hyuk CHOI, Sung Jin Eum +1 more | 2019-01-08 |