Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11800672 | Tower-shaped support device | Min Jee KIM, Sang Hoon Lee | 2023-10-24 |
| 11049677 | Inverse current injection-type direct current blocking device and method using vacuum gap switch | Woo Young Lee, Hae Yong PARK, Gyeong Ho Lee, Sang-Hun Park, Jung Wook Sim +1 more | 2021-06-29 |
| 10191120 | Apparatus for detecting defect of electric power system | Hae Yong PARK, Jung Wook Sim, Gyeong Ho Lee | 2019-01-29 |
| 10063046 | Direct current circuit breaker and method using the same | Gyeong Ho Lee, Jung Wook Sim, Hae Yong PARK | 2018-08-28 |
| 8299385 | Valve for gas circuit breaker and gas circuit breaker with the same | Joung Ung Choi | 2012-10-30 |