Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1023040 | Display screen or portion thereof with transitional graphical user interface | Sang Il Ahn, Eun-Hee Choi | 2024-04-16 |
| 11252373 | Video call mediating apparatus, method and computer readable recording medium thereof | Sangil Ahn | 2022-02-15 |