Actuator for a Circuit Breaker in a Switchgear
US-2026018359-A1 · Jan 15, 2026 · US
Branched or multiple-limb main magnetic circuits
Branched or multiple-limb main magnetic circuits · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01H50/40 |
| Official title | Branched or multiple-limb main magnetic circuits |
| Display label | Branched or multiple-limb main magnetic circuits |
| Total patents | 46 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 5 |
| 2017 | 2 |
| 2018 | 4 |
| 2019 | 3 |
| 2021 | 2 |
| 2022 | 4 |
| 2023 | 6 |
| 2024 | 6 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Direct current relay
US-12494334-B2 · Dec 9, 2025 · US
Assembling an electromechanical switching device to minimize air gaps in magnetic circuit pathways
US-2025349482-A1 · Nov 13, 2025 · US
Hinge type bistable magnetic circuit structure and magnetic latching relay
US-12394583-B2 · Aug 19, 2025 · US
Direct-current relay capable of extinguishing arc and resisting short-circuit current
US-12027334-B2 · Jul 2, 2024 · US
Direct-current relay capable of extinguishing arc and resisting short-circuit current
US-12027333-B2 · Jul 2, 2024 · US
Direct-current relay capable of extinguishing arc and resisting short-circuit current
US-12027335-B2 · Jul 2, 2024 · US
Direct-current relay having a function of extinguishing ARC and resisting short-circuit current
US-12020881-B2 · Jun 25, 2024 · US
Direct-current relay having a function of extinguishing arc and resisting short-circuit current
US-12020880-B2 · Jun 25, 2024 · US
Hinge type bistable magnetic circuit structure and magnetic latching relay
US-2024087827-A1 · Mar 14, 2024 · US
Direct-current relay capable of extinguishing arc and resisting short-circuit current
US-2023260734-A1 · Aug 17, 2023 · US
Direct-current relay capable of extinguishing arc and resisting short-circuit current
US-2023260732-A1 · Aug 17, 2023 · US
Direct-current relay having a function of extinguishing arc and resisting short-circuit current
US-2023260731-A1 · Aug 17, 2023 · US
Direct-current relay capable of extinguishing arc and resisting short-circuit current
US-2023260730-A1 · Aug 17, 2023 · US
Direct-current relay having a function of extinguishing arc and resisting short-circuit current
US-2023260733-A1 · Aug 17, 2023 · US
Direct-current relay resistant to short-circuit current
US-11670472-B2 · Jun 6, 2023 · US
Direct current relay
US-2022223362-A1 · Jul 14, 2022 · US
Rotatable switch
US-11322314-B2 · May 3, 2022 · US
Rotary switch and circuit interrupter including the same
US-11289294-B2 · Mar 29, 2022 · US
Direct-current relay resistant to short-circuit current
US-2022013316-A1 · Jan 13, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01H50/40?
- CPC H01H50/40 is the Cooperative Patent Classification code for “Branched or multiple-limb main magnetic circuits.”
- How many patents are filed under CPC H01H50/40 (Branched or multiple-limb main magnetic circuits)?
- Our database includes 46 publications tagged with this CPC code.
- Is patent activity under CPC H01H50/40 growing?
- Publication counts under this code: 6 in 2024 vs 3 in 2025 (latest complete years).