Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8259622 | System and method for providing packet network-based multimedia ringback tone service | Won Jun Lee, Jae-Yong Park, Ki Mun Kim, Min Seok Kim | 2012-09-04 |
| 8238918 | Hand over method from asynchronous mobile communication network to synchronous mobile communication network | Sang-Yun Lee, Jae Young Ju, Hee-Hyeok Hahm, Bum-Soo Shin, Kyeong-Hee Han | 2012-08-07 |
| 7983676 | Inter-system handover | Jae Young Ju, Hyun Wook Kim, Young-Lak Kim | 2011-07-19 |
| 7809800 | Method for providing the location information on a mobile station based on DBM and TCP/IP | Ki Mun Kim, Sang-Yun Lee, Hee-Hyeok Hahm, Young Ahn Ryu, Jae Young Ju | 2010-10-05 |
| 7260406 | Method for tracking location of subscribers in dual stack mobile communication network | Sang-Yun Lee, Hee-Hyeok Hahm, Ki Mun Kim, Young Ahn Ryu, Jae Young Ju | 2007-08-21 |