Safety switch
US-2024055208-A1 · Feb 15, 2024 · US
Magnetic coils or windings
Magnetic coils or windings · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01H50/44 |
| Official title | Magnetic coils or windings |
| Display label | Magnetic coils or windings |
| Total patents | 416 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 24 |
| 2016 | 21 |
| 2017 | 25 |
| 2018 | 26 |
| 2019 | 35 |
| 2020 | 40 |
| 2021 | 48 |
| 2022 | 48 |
| 2023 | 52 |
| 2024 | 44 |
| 2025 | 46 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electromagnetic device and electromagnetic relay equipped with electromagnetic device
US-2017365431-A1 · Dec 21, 2017 · US
Electromagnetic device and electromagnetic relay provided therewith
US-2017345596-A1 · Nov 30, 2017 · US
Micro electromagnetically actuated latched switches
US-2017301493-A1 · Oct 19, 2017 · US
Electromagnetic relay
US-9793079-B2 · Oct 17, 2017 · US
Coil Arrangement, and Electrochemical Switch, Respectively Measurement Transmitter, Formed Therewith
US-2017199231-A1 · Jul 13, 2017 · US
Electromagnetic relay
US-9657704-B2 · May 23, 2017 · US
Alternating current switch contactor
US-9613767-B2 · Apr 4, 2017 · US
Electromagnetic relay
US-2017092450-A1 · Mar 30, 2017 · US
Electrical contactor
US-9607780-B2 · Mar 28, 2017 · US
Dual stroke mechanically latched mechanism
US-9601292-B2 · Mar 21, 2017 · US
Electrical contactor with movable arm
US-9583283-B2 · Feb 28, 2017 · US
Electromagnetic relay
US-2017047182-A1 · Feb 16, 2017 · US
Magnetic switch
US-9570258-B2 · Feb 14, 2017 · US
Electromagnetic relay
US-9562508-B2 · Feb 7, 2017 · US
Magnetic contactor
US-9514897-B2 · Dec 6, 2016 · US
High-voltage coil
US-9512361-B2 · Dec 6, 2016 · US
Device for controlling electrically actuable valves in different operating modes
US-9502198-B2 · Nov 22, 2016 · US
Alternating current switch contactor
US-9490083-B2 · Nov 8, 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
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01H50/44?
- CPC H01H50/44 is the Cooperative Patent Classification code for “Magnetic coils or windings.”
- How many patents are filed under CPC H01H50/44 (Magnetic coils or windings)?
- Our database includes 416 publications tagged with this CPC code.
- Is patent activity under CPC H01H50/44 growing?
- Publication counts under this code: 44 in 2024 vs 46 in 2025 (latest complete years).