Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9876654 | Messaging service system and method for expanding member addition operation | Haejin LEE, JungHo SHIN, Seong Hoon Kim, Jungmin Lee, Bo Yoon CHOI | 2018-01-23 |
| 9497143 | Method and system for providing on-air service using official account | Hyuk Sung Chung, Ryuichi Kumai, Donghyun Kim, Minbo Bae, Yusuke Katagiri +2 more | 2016-11-15 |