Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7839841 | Apparatus and method for providing VoIP service based on IP multimedia subsystem | Jae-Woo Kwon | 2010-11-23 |
| 7729705 | Method of providing location service over IMS network | Heung-Chul Jung | 2010-06-01 |
| 7586876 | Handoff system and method between a wireless LAN and mobile communication network | Eun-Young Chung, Sang-Do Lee, Dong-Keon Kong, Sang-Jun Moon, Jong-Bum Pyo +3 more | 2009-09-08 |