Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8804664 | Method for selectively performing handoff according to service type and system thereof | — | 2014-08-12 |
| 8718014 | System and method for performing handoff between different types of networks by using a short message service | Woo-jin CHOI, Eun-Kyoung Paik, Seong-Choon Lee | 2014-05-06 |
| 7583953 | Method and device for subdividing data service charges in a network | Woo Hyung Choi, Mi-Na Oh, Sung-Chul Kim | 2009-09-01 |
| 5913219 | Database recovery apparatus and method of using dual plane nonvolatile memory | Young Sik Baek, Yong Keol Kim | 1999-06-15 |