Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10542343 | Portable sound equipment | Youngil Kim, Siyoung Park, Inkwi Jang | 2020-01-21 |
| 9973842 | Portable sound equipment | Donghan Kim, Obyoung Kang | 2018-05-15 |
EC
Ehwan Cho
Overall (All Time): #1,897,005 of 4,157,543Top 50%
2
Patents All Time