Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10605237 | Multiple oscillating water pumping device | Jin Hwan Ko, Jin Soon Park | 2020-03-31 |
| 9494129 | Multiple oscillation-type generator | Jin Hwan Ko, Kwang Soo Lee | 2016-11-15 |