Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10051513 | Method and apparatus for obtaining authentication information | Sung Hwan Won, Songyean Cho | 2018-08-14 |
| 10045388 | Method and apparatus of improving quality of calls in mobile communication system | Sangsoo Jeong, Songyean Cho, Heejeong Lee | 2018-08-07 |