Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10453637 | Direct current air circuit breaker | Sangchul Lee, Youngkook Kim, Ilhyun Kim | 2019-10-22 |
| 10424453 | Circuit breaker having circuit operating device | Sangchul Lee, Youngkook Kim | 2019-09-24 |