Electromagnetic device and electromagnetic relay equipped with electromagnetic device
US-2017365431-A1 · Dec 21, 2017 · US
movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil
movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01H50/20 |
| Official title | movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil |
| Display label | movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil |
| Total patents | 255 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 18 |
| 2016 | 24 |
| 2017 | 25 |
| 2018 | 21 |
| 2019 | 21 |
| 2020 | 23 |
| 2021 | 24 |
| 2022 | 26 |
| 2023 | 27 |
| 2024 | 21 |
| 2025 | 19 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electromagnetic relay
US-9793079-B2 · Oct 17, 2017 · US
Plunger for magnetic latching solenoid actuator
US-2017256349-A1 · Sep 7, 2017 · US
Auxiliary relay of electronic contactor
US-2017236668-A1 · Aug 17, 2017 · US
Electromagnetic relay
US-9734972-B2 · Aug 15, 2017 · US
Auxiliary relay of electronic contactor
US-9734970-B1 · Aug 15, 2017 · US
Electromagnetic contactor
US-9721741-B2 · Aug 1, 2017 · US
Magnetic switch
US-9679725-B2 · Jun 13, 2017 · US
Electrical disconnect contactors
US-9679729-B2 · Jun 13, 2017 · US
Relay
US-9673010-B2 · Jun 6, 2017 · US
Thomson coil based actuator
US-2017154747-A1 · Jun 1, 2017 · US
Electrical Contact Switch and Electrical Contactor
US-2017110276-A1 · Apr 20, 2017 · US
Electrical disconnect contactors
US-2017110277-A1 · Apr 20, 2017 · US
Electromagnetic contactor
US-9627154-B2 · Apr 18, 2017 · US
Power relay for a vehicle
US-2017069450-A1 · Mar 9, 2017 · US
Improved micro-solenoid contactor for a motor vehicle starter, and corresponding starter
US-2017062164-A1 · Mar 2, 2017 · US
Contact device of a starter contactor
US-2017053763-A1 · Feb 23, 2017 · US
Electrical Switching Arrangement With Improved Linear Bearing
US-2017011878-A1 · Jan 12, 2017 · US
Electrical relay device
US-2016365209-A1 · Dec 15, 2016 · US
Magnetic contactor
US-9514897-B2 · Dec 6, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01H50/20?
- CPC H01H50/20 is the Cooperative Patent Classification code for “movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil.”
- How many patents are filed under CPC H01H50/20 (movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil)?
- Our database includes 255 publications tagged with this CPC code.
- Is patent activity under CPC H01H50/20 growing?
- Publication counts under this code: 21 in 2024 vs 19 in 2025 (latest complete years).