Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8588755 | Method for providing supplementary service control menu and system to provide the supplementary service control menu | Eunseong Lee | 2013-11-19 |
| 8331920 | Method for providing supplementary service control menu and system to provide the supplementary service control menu | Eunseong Lee | 2012-12-11 |