Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12238457 | Application processing method for providing group video call | Hyung Jin Kim, Sung San Kim, Hyo Jin HAM, Tae-Kyu Kim, Young Wuk Seo +4 more | 2025-02-25 |
| 11722640 | Application processing method for providing group video call | Hyung Jin Kim, Sung San Kim, Hyo Jin HAM, Tae-Kyu Kim, Young Wuk Seo +4 more | 2023-08-08 |
| 6091344 | Communication processing device of toll collecting system | Won-Seo Park, Ho-Cheol Kim, Duk-Kyun Ryu | 2000-07-18 |
| 6078895 | Technique for showing running time by sections on tollway | Duk-Kyun Ryu | 2000-06-20 |