Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11160428 | Cleaner | Sangchul Lee, Kietak Hyun, Sejin Yook, Sanghee Woo, Seungyoon Noh | 2021-11-02 |
| 11147423 | Dust collector and cleaner having the same | Kietak Hyun, Sangchul Lee | 2021-10-19 |
CL
Changgun LEE
Iucf-Hyu (Industry-University Cooperation: 1 patents #1 of 6Top 20%
Overall (2021): #172,986 of 548,734Top 35%
2
Patents 2021