Opening and closing mechanism and leakage protection device
US-12401178-B2 · Aug 26, 2025 · US
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with rotatable armature
with rotatable armature · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01H71/323 |
| Official title | {with rotatable armature} |
| Display label | with rotatable armature |
| Total patents | 13 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 2 |
| 2019 | 1 |
| 2021 | 3 |
| 2022 | 3 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Overcurrent protection device based on thermo magnetically-shiftable material
US-2024339278-A1 · Oct 10, 2024 · US
Opening and closing mechanism and leakage protection device
US-2023021012-A1 · Jan 19, 2023 · US
Air gap driving mechanism of a solid-state circuit breaker includes permanent magnet(s) for contact separation
US-11538650-B1 · Dec 27, 2022 · US
Trip free relay
US-11456139-B2 · Sep 27, 2022 · US
Rotary switch and circuit interrupter including the same
US-11289294-B2 · Mar 29, 2022 · US
Trip free relay
US-2021175037-A1 · Jun 10, 2021 · US
Trip free relay
US-10930462-B2 · Feb 23, 2021 · US
Rotary switch and circuit interrupter including the same
US-2021012992-A1 · Jan 14, 2021 · US
Trip free relay
US-2019115178-A1 · Apr 18, 2019 · US
Magnetically driven trip mechanism for an overload relay
US-9711307-B2 · Jul 18, 2017 · US
Low tripping level circuit breakers, tripping units, and methods
US-9601296-B2 · Mar 21, 2017 · US
Magnetically driven trip mechanism for an overload relay
US-2016126039-A1 · May 5, 2016 · US