Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12288966 | Bogie apparatus and circuit breaker comprising same | Han-Joo Lee | 2025-04-29 |
| 12087534 | Circuit breaker with manual energy-accumulating unit gears intitally separated from one another | — | 2024-09-10 |
| 11804698 | Switchboard having rotating shutter structure | Han-Joo Lee | 2023-10-31 |
| 11764020 | Pole component and circuit breaker comprising same | Han-Joo Lee, Kil Young Ahn | 2023-09-19 |
| 11476646 | Retracting and extending apparatus for circuit breaker with interlock module | — | 2022-10-18 |
| 10614981 | Pole component assembly for circuit breaker | Han-Joo Lee, Kil Young Ahn | 2020-04-07 |
| 10389093 | Interlocking mechanism for circuit breaker | Kil Young Ahn | 2019-08-20 |
| 10211609 | Transportation device of withdrawable circuit breaker | Il Hyun Kim | 2019-02-19 |
| 10153625 | Interlock device for preventing close during insertion or withdraw on circuit breaker in switch board | Han-Joo Lee, Kil Young Ahn | 2018-12-11 |
| 9825439 | Withdrawable interlock device of vacuum circuit breaker | Han-Joo Lee, Jun Youn Jo, Kil Young Ahn | 2017-11-21 |
| 9425590 | Withdrawable-type circuit breaker | Jun Youn Jo, Kil Young Ahn, Seung Pil Yang, Seung Hwan Mun | 2016-08-23 |
| 9070521 | Circuit breaker | Seung Pil Yang | 2015-06-30 |
| 8975546 | Circuit breaker provided with mechanical trip mechanism | Jong Doo Kim, Kil Young Ahn | 2015-03-10 |
| 8648271 | Position switch and circuit breaker having the same | In Kyum Kim, Kil Young Ahn, Seung Pil Yang, Yong Tae Kim | 2014-02-11 |
| 8604368 | Circuit breaker having cradle with a shutter safety device | In Kyum Kim, Seung Pil Yang, Kil Young Ahn | 2013-12-10 |
| 8575502 | Plug interlock device for circuit breaker and circuit breaker having the same | Kil Young Ahn, Seung Pil Yang, In Kyum Kim, Yong Tae Kim | 2013-11-05 |
| 8119942 | Circuit breaker having delaying function for rotation of cam | Kil Young Ahn | 2012-02-21 |
| 7977595 | Automatic discharging apparatus for closing spring in air circuit breaker and air circuit breaker having the same | Sang Chul Lee, Ki Hwan Kim, Kil Young Ahn | 2011-07-12 |
| 7973622 | Apparatus for auxiliary contact of circuit breaker | Sang Chul Lee, Kil Young Ahn | 2011-07-05 |
| 7397008 | Switching mechanism for air circuit breaker | Kil Young Ahn, Sang Chul Lee, Ki Hwan Kim | 2008-07-08 |