Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7973622 | Apparatus for auxiliary contact of circuit breaker | Hong Ik Yang, Sang Chul Lee | 2011-07-05 |
| 7956307 | Circuit breaker having automatic release linkage | — | 2011-06-07 |
| 7655877 | Air circuit breaker with mechanical trip indicating mechanism | — | 2010-02-02 |
| 7397008 | Switching mechanism for air circuit breaker | Hong Ik Yang, Sang Chul Lee, Ki Hwan Kim | 2008-07-08 |