Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8807917 | Maintenance system of helical turbine | Jin Soon Park, Kwang Soo Lee, Ki Dai Yum, Seong Eun Kim, Myoung Hak Oh +1 more | 2014-08-19 |
| 8740545 | Maintenance system of helical turbine | Jin Soon Park, Kwang Soo Lee, Ki Dai Yum, Seong Eun Kim, Myoung Hak Oh +1 more | 2014-06-03 |