Electromagnetic device and electromagnetic relay equipped with electromagnetic device
US-2017365431-A1 · Dec 21, 2017 · US
Movable parts of magnetic circuits, e.g. armature
Movable parts of magnetic circuits, e.g. 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 | H01H50/18 |
| Official title | Movable parts of magnetic circuits, e.g. armature |
| Display label | Movable parts of magnetic circuits, e.g. armature |
| Total patents | 454 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 29 |
| 2016 | 28 |
| 2017 | 32 |
| 2018 | 27 |
| 2019 | 34 |
| 2020 | 37 |
| 2021 | 51 |
| 2022 | 54 |
| 2023 | 55 |
| 2024 | 60 |
| 2025 | 41 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electromagnetic relay
US-9583293-B2 · Feb 28, 2017 · US
Magnetic actuator
US-9576714-B2 · Feb 21, 2017 · US
Relay and flag assembly for use with relays
US-9530598-B2 · Dec 27, 2016 · US
Magnetic switch
US-2016314917-A1 · Oct 27, 2016 · US
Electromagnetic relay
US-2016314921-A1 · Oct 27, 2016 · US
Electromagnetic relay
US-2016314920-A1 · Oct 27, 2016 · US
Modular electrical switch device comprising at least one unipolar cut-off unit and a switch assembly comprising such devices
US-9478381-B2 · Oct 25, 2016 · US
Electromagnetic relay
US-2016300673-A1 · Oct 13, 2016 · US
Flux shunt trip actuator interface and breaker reset mechanism for circuit breaker
US-9466451-B2 · Oct 11, 2016 · US
Method for controlling a contactor device, and control unit
US-2016276122-A1 · Sep 22, 2016 · US
Magnetic tripping device and overcurrent tripping device of an electrical switch and electrical switch and method for calibrating the magnetic tripping of a magnetic tripping device
US-9425013-B2 · Aug 23, 2016 · US
Electromagnetic relay
US-9412545-B2 · Aug 9, 2016 · US
Electrical Switching Device with a Low Switching Noise
US-2016225567-A1 · Aug 4, 2016 · US
Circuit breaker heaters and translational magnetic systems
US-9406474-B2 · Aug 2, 2016 · US
Electrical contact apparatus, assemblies, and methods of operation
US-2016196944-A1 · Jul 7, 2016 · US
Electromagnetic relay
US-2016181038-A1 · Jun 23, 2016 · US
Contact device
US-2016141132-A1 · May 19, 2016 · US
Electromagnetic switching device
US-2016126043-A1 · May 5, 2016 · US
Tripping device of circuit breaker
US-2016126041-A1 · May 5, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01H50/18?
- CPC H01H50/18 is the Cooperative Patent Classification code for “Movable parts of magnetic circuits, e.g. armature.”
- How many patents are filed under CPC H01H50/18 (Movable parts of magnetic circuits, e.g. armature)?
- Our database includes 454 publications tagged with this CPC code.
- Is patent activity under CPC H01H50/18 growing?
- Publication counts under this code: 60 in 2024 vs 41 in 2025 (latest complete years).