Issued Patents 2017
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9678130 | Earth leakage circuit breaker | — | 2017-06-13 |
| 9608432 | Electric leakage determination circuit for electric leakage circuit breaker | Dong Hyun Kim, Chel Ho CHUNG | 2017-03-28 |
| 9583645 | Photovoltaic system | Dong Hyun Kim, Jong-bae Kim | 2017-02-28 |