Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8267374 | Multi-turn hydraulic actuator | Hee Goo Sim, Mun Su Bok, Jae Chul Lee, Po Young Kim | 2012-09-18 |
| 7934518 | Detecting device for valve opening-closing | Mun Su Bok, Ki-Jong Jin, Jae Chul Lee, Jung-Hwan Lim | 2011-05-03 |
| 7788914 | Apparatus operating hydraulic actuator for valve | — | 2010-09-07 |