Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10251051 | Method for providing multi number service | Chung Il Cho, Sung Hwan Kim, Young Min Son, Chang Yong Choi, Hyun-Sung Hong | 2019-04-02 |
| 10136307 | Method for providing multi number service | Chung Il Cho, Sung Hwan Kim, Young Min Son, Chang Yong Choi, Hyun-Sung Hong | 2018-11-20 |