Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7313396 | Registering mobile station in private mobile network cooperating with public land mobile network (PLMN) | Dong Youl Lee, Doo-Yong Yang | 2007-12-25 |
| 7292853 | Roaming service method and system in multi-zone private wireless network systems | Jong Hyuk Baek, Yong Sung Lee | 2007-11-06 |