Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10313515 | Apparatus and method for providing presence service in communication device | Eung-Moon Yeom | 2019-06-04 |
| 8949904 | Channel control method and apparatus | Jae-Young Lee | 2015-02-03 |
| 7783314 | System and method for providing PTT service according to user state | Dae-Hyun Lee | 2010-08-24 |
| 7710861 | Network system and method for link failure recovery | Dae-Hyun Lee | 2010-05-04 |
| 7684397 | Symmetric network address translation system using STUN technique and method for implementing the same | Dae-Hyun Lee | 2010-03-23 |