Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6801765 | Locking and unlocking method in mobile telephone | Youn-Man Lee, Yong-Duck Hwang | 2004-10-05 |
| 6714799 | Method and system for using SIM card in CDMA service area | Jeon-Man Park | 2004-03-30 |