Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10393286 | Valve position indicator for valve shutter | Hyung-Suk Lee, Sang-Won An | 2019-08-27 |
DJ
Duk-Chun Jang
Overall (All Time): #4,133,362 of 4,157,543Top 100%
1
Patents All Time