Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10124245 | Quiz game providing system using user creating quiz game set and method thereof | — | 2018-11-13 |
| 9980044 | Balance adjustment control method for sound/illumination devices | Ju Sang Kim | 2018-05-22 |