Contactor assembly for battery pack of electric work vehicle
US-12485777-B2 · Dec 2, 2025 · US
using plural redundant serial connected relay operated contacts in controlled circuit
using plural redundant serial connected relay operated contacts in controlled circuit · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01H47/004 |
| Official title | {using plural redundant serial connected relay operated contacts in controlled circuit} |
| Display label | using plural redundant serial connected relay operated contacts in controlled circuit |
| Total patents | 46 |
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 | 2 |
| 2016 | 5 |
| 2017 | 7 |
| 2018 | 6 |
| 2019 | 6 |
| 2020 | 5 |
| 2021 | 5 |
| 2022 | 3 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Safety switching apparatus, in particular for the monitored switching on of an electrical and/or electronic load
US-12235320-B2 · Feb 25, 2025 · US
Relay, and method for operating a relay
US-2024194423-A1 · Jun 13, 2024 · US
Interrupter circuit with diagnostic circuit
US-2024145189-A1 · May 2, 2024 · US
Safety switching apparatus, in particular for the monitored switching on of an electrical and/or electronic load
US-2023358807-A1 · Nov 9, 2023 · US
Contactor assembly for battery pack of electric work vehicle
US-2023182582-A1 · Jun 15, 2023 · US
Relay arrangement with improved heat dissipation and converter device having a relay arrangement of this kind
US-11570884-B2 · Jan 31, 2023 · US
Relay control circuit and power supply circuit
US-2022406542-A1 · Dec 22, 2022 · US
Relay fault diagnosis device
US-11360145-B2 · Jun 14, 2022 · US
Relay arrangement with improved heat dissipation and converter device having a relay arrangement of this kind
US-2022007498-A1 · Jan 6, 2022 · US
Relay arrangement with improved heat dissipation and converter device having a relay arrangement of this kind
US-11129272-B2 · Sep 21, 2021 · US
Modular contactor arrangement
US-11120960-B2 · Sep 14, 2021 · US
Modular safety relay circuit for the safe switching on and/or off of at least one machine
US-11101091-B2 · Aug 24, 2021 · US
Arrangement and method for a safe turn off
US-11022651-B2 · Jun 1, 2021 · US
Modular contactor arrangement
US-2021134550-A1 · May 6, 2021 · US
Automatic transfer switch including power line carrier communications
US-2020403440-A1 · Dec 24, 2020 · US
Safety circuit for fail-safe shutdown of a dangerous system
US-10727014-B2 · Jul 28, 2020 · US
Relay fault diagnosis device
US-2020096571-A1 · Mar 26, 2020 · US
Safety switching device for switching on and safely switching off an electrical load
US-10532714-B2 · Jan 14, 2020 · US
Arrangement and method for a safe turn off
US-2020003837-A1 · Jan 2, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01H47/004?
- CPC H01H47/004 is the Cooperative Patent Classification code for “using plural redundant serial connected relay operated contacts in controlled circuit.”
- How many patents are filed under CPC H01H47/004 (using plural redundant serial connected relay operated contacts in controlled circuit)?
- Our database includes 46 publications tagged with this CPC code.
- Is patent activity under CPC H01H47/004 growing?
- Publication counts under this code: 2 in 2024 vs 2 in 2025 (latest complete years).