Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10567319 | Method of providing instant messaging service and multiple services expanded from instant messaging service | Doo Shik Chung, Soo Wan Shin | 2020-02-18 |
| 10305827 | Method and system for providing instant messaging service | Ka Ram Han, Yong Hyun Kim, Sung Hwan Chang | 2019-05-28 |
| 10212488 | Channel-based method and system for relaying contents | Doo Shik Chung, Bo-ra Lim | 2019-02-19 |
| 9807038 | Method and system for providing instant messaging service | Ka Ram Han, Yong Hyun Kim, Sung Hwan Chang | 2017-10-31 |
| 9647967 | Method of providing instant messaging service and multiple services expanded from instant messaging service | Doo Shik Chung, Soo Wan Shin | 2017-05-09 |