Relay Control Apparatus, Battery Pack and Electric Vehicle
US-2026008348-A1 · Jan 8, 2026 · US
Safety control circuits therefor, e.g. chain of relays mutually monitoring each other
Safety control circuits therefor, e.g. chain of relays mutually monitoring each other · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01H47/005 |
| Official title | {Safety control circuits therefor, e.g. chain of relays mutually monitoring each other} |
| Display label | Safety control circuits therefor, e.g. chain of relays mutually monitoring each other |
| Total patents | 60 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 3 |
| 2017 | 3 |
| 2018 | 6 |
| 2019 | 6 |
| 2020 | 7 |
| 2021 | 11 |
| 2022 | 2 |
| 2023 | 8 |
| 2024 | 4 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Relay apparatus and safety switching device with relay apparatus
US-12431308-B2 · Sep 30, 2025 · US
Relay control apparatus, battery pack and electric vehicle
US-12370894-B2 · Jul 29, 2025 · US
Systems and methods for detecting welded contacts in a switch system
US-12347636-B2 · Jul 1, 2025 · US
Control circuit for contactor and its control method
US-12106915-B2 · Oct 1, 2024 · US
Switch assembly and method for safely operating a switch assembly
US-12046438-B2 · Jul 23, 2024 · US
Method for monitoring an electrical switching arrangement
US-11960274-B2 · Apr 16, 2024 · US
Relay apparatus and safety switching device with relay apparatus
US-2024079193-A1 · Mar 7, 2024 · US
Dual coil armature for supervision relay of trip coil
US-11831141-B2 · Nov 28, 2023 · US
Charging control device
US-11824382-B2 · Nov 21, 2023 · US
Systems and methods for detecting welded contacts in a switch system
US-2023343533-A1 · Oct 26, 2023 · US
Relay Control Apparatus, Battery Pack and Electric Vehicle
US-2023331091-A1 · Oct 19, 2023 · US
Power interface control device of a vehicle propulsion battery
US-11745677-B2 · Sep 5, 2023 · US
System for switching between supplying and cutting off electronic power depending whether a housing cover is open or closed
US-11733630-B2 · Aug 22, 2023 · US
Method for monitoring an electrical switching arrangement
US-2023107557-A1 · Apr 6, 2023 · US
Control circuit for contactor and its control method
US-2023040913-A1 · Feb 9, 2023 · US
Switch assembly and method for safely operating a switch assembly
US-2022254580-A1 · Aug 11, 2022 · US
System for switching between supplying and cutting off electronic power depending whether a housing cover is open or closed
US-2022197203-A1 · Jun 23, 2022 · US
Safety switching device and safety-related device
US-11209789-B2 · Dec 28, 2021 · US
Charging control device
US-2021367431-A1 · Nov 25, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01H47/005?
- CPC H01H47/005 is the Cooperative Patent Classification code for “Safety control circuits therefor, e.g. chain of relays mutually monitoring each other.”
- How many patents are filed under CPC H01H47/005 (Safety control circuits therefor, e.g. chain of relays mutually monitoring each other)?
- Our database includes 60 publications tagged with this CPC code.
- Is patent activity under CPC H01H47/005 growing?
- Publication counts under this code: 4 in 2024 vs 3 in 2025 (latest complete years).