Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10305827 | Method and system for providing instant messaging service | Seung Hwan Van, Yong Hyun Kim, Sung Hwan Chang | 2019-05-28 |
| 9807038 | Method and system for providing instant messaging service | Seung Hwan Van, Yong Hyun Kim, Sung Hwan Chang | 2017-10-31 |
| 9490403 | Color converting element and light emitting device including the same | Woon Jin Chung, Yi Kwon Lee | 2016-11-08 |