Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8374171 | Method for reducing the risk of call connection failure and system to perform the method | Ohyoon KWON, Tae Han Lee | 2013-02-12 |
| 8248450 | Method for establishing fast session of video call and terminal | — | 2012-08-21 |