Issued Patents 2021
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11191404 | Cleaner | Sangchul Lee, Jonguk HER | 2021-12-07 |
| 11160428 | Cleaner | Sangchul Lee, Changgun LEE, Sejin Yook, Sanghee Woo, Seungyoon Noh | 2021-11-02 |
| 11147423 | Dust collector and cleaner having the same | Sangchul Lee, Changgun LEE | 2021-10-19 |
| 11116373 | Cleaner | Youngjoo Lee, Soohan Eo, Jungmin Ko | 2021-09-14 |
| 11071426 | Vacuum cleaner | Youngjoo Lee, Soohan Eo, Jungmin Ko | 2021-07-27 |
| 10925452 | Dust collector for vacuum cleaner | Seungyeop Lee, Hyukjin Ahn | 2021-02-23 |