Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11134817 | Cleaning apparatus having vacuum cleaner and docking station | See-hyun Kim, In Gyu CHOI, Ki Hwan Kwon, Shin Kim, Hyeon Cheol Kim +4 more | 2021-10-05 |
| 11134818 | Cleaning apparatus having vacuum cleaner and docking station | See-hyun Kim, In Gyu CHOI, Ki Hwan Kwon, Shin Kim, Hyeon Cheol Kim +4 more | 2021-10-05 |
| 11076732 | Vacuum cleaner | Dong-houn Yang, Hyeon Cheol Kim, Joung-soo Park | 2021-08-03 |