Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11144178 | Method for providing contents for mobile terminal on the basis of user touch and hold time | — | 2021-10-12 |
| 10888870 | Grinder using induced electric field | Jin Young Son, Sang Hoon Choy, Byoung Hoon Ahn, Hyun Sik Chae | 2021-01-12 |