Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9855522 | Air purifier | Kyoungho Lee, Sangjin Cha | 2018-01-02 |
| 9802145 | Air purifier | Kyoungho Lee, Sangjin Cha | 2017-10-31 |
| 9713783 | Air purifier | Kyoungho Lee, Sangjin Cha | 2017-07-25 |