Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11081653 | Heterocyclic compound and organic light emitting element using same | Won-Jang JEONG, Jin-Seok Choi | 2021-08-03 |
| 10992487 | Instant messaging service method for providing schedule service and apparatus therefor | Hyun Na Park, Won Iel Yoo, Hoi Moon Jeong, Seung Uk Jeong, Moon Seok Park +3 more | 2021-04-27 |