Issued Patents 2020
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10837659 | Air purifier | Sang-Woo Kang, In-Kyu Back | 2020-11-17 |
| 10821389 | Air purifier with hinged filter frame | Sang-Woo Kang, Jin Min Kim | 2020-11-03 |
| 10688431 | Air purifier | Sang-Woo Kang | 2020-06-23 |