Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11076732 | Vacuum cleaner | Hyeon Cheol Kim, Joung-soo Park, Do Kyung LEE | 2021-08-03 |
DY
Dong-houn Yang
Overall (2021): #469,626 of 548,734Top 90%
1
Patents 2021