Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11028852 | Drain pump | Sangyoung Cho, Changhyeon Song, Youngjin Oh, Seonjoong Lee | 2021-06-08 |
| 10941785 | Brushless DC motor and drain pump having the same | Sangyoung Cho, Seonjoong Lee | 2021-03-09 |
CK
Changsub Kim
Overall (2021): #173,175 of 548,734Top 35%
2
Patents 2021