Issued Patents 2023
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11847632 | Sound wave payment system, magnetic field conversion device, and mobile terminal for sound wave payment technical field | Tae Hyun RYOO, Je Chul LEE, Chang Soon Yim, Su-Won Lee | 2023-12-19 |