Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10509059 | Apparatus for detecting current | — | 2019-12-17 |
| 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 |
| 9490632 | Solar device | — | 2016-11-08 |
| 9194891 | Root mean square detector and circuit breaker using the same | — | 2015-11-24 |
| 9190828 | Detecting circuit for circuit breaker | — | 2015-11-17 |
| 8432649 | Abnormal current detecting circuit for circuit breaker | — | 2013-04-30 |
| 7889057 | RFID reader | — | 2011-02-15 |