Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D969810 | Electronic board | Sungjin Ann, Youngsoo Hong, Wonchul Hwang | 2022-11-15 |
| 11112107 | Display apparatus | Kihong Kim | 2021-09-07 |
| D913370 | Electronic board | Wonchul Hwang, Sungjin Ann | 2021-03-16 |
| D864296 | Electronic board | Jeongwoo Park, Donghee Won, Sungjin Ann | 2019-10-22 |
| D846555 | Stand for e-board | Jeongwoo Park, Donghee Won, Sungjin Ann | 2019-04-23 |
| D779456 | Speaker | Gyoo-Sang Choi | 2017-02-21 |
| D775105 | Speaker | Gyoo-Sang Choi | 2016-12-27 |
| D775118 | Audio device | Minjoon Jung, Gyoo-Sang Choi | 2016-12-27 |
| D772192 | Speaker | Junpyo Kim, Gyoo-Sang Choi | 2016-11-22 |
| D771586 | Speaker | Junpyo Kim, Gyoo-Sang Choi | 2016-11-15 |