Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10136220 | Bluetooth neck band headset including vibration speaker | Jeong Il Kwon, Sangyoon Shin, Leesub Song, Chungyul Ryu | 2018-11-20 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10136220 | Bluetooth neck band headset including vibration speaker | Jeong Il Kwon, Sangyoon Shin, Leesub Song, Chungyul Ryu | 2018-11-20 |