Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11075342 | Spiro-type compound and organic light emitting diode comprising same | Jiwon Kwak, Sang Duk SUH | 2021-07-27 |
| 11069858 | Amine-based compound and organic light emitting device comprising same | Sung Jae Lee, Sung Kil Hong | 2021-07-20 |
| 10991887 | Amine compound and organic light-emitting device comprising same | Sung Kil Hong, Sang Duk SUH | 2021-04-27 |
| 10910567 | Double spiro-type compound and organic light emitting diode comprising same | Sung Kil Hong, Sang Duk SUH | 2021-02-02 |