Electric motor
US-2025379498-A1 · Dec 11, 2025 · US
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with self-recoiling spring
with self-recoiling spring · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01R39/415 |
| Official title | with self-recoiling spring |
| Display label | with self-recoiling spring |
| Total patents | 24 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 1 |
| 2017 | 2 |
| 2018 | 5 |
| 2019 | 1 |
| 2020 | 2 |
| 2021 | 3 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electric motor
US-2025300517-A1 · Sep 25, 2025 · US
Current transmission sub-device of a current-excited synchronous machine as a drive motor in a hybrid on electric vehicle
US-12328039-B2 · Jun 10, 2025 · US
Current Transmission Sub-Device of a Current-Excited Synchronous Machine as a Drive Motor in a Hybrid or Electric Vehicle
US-2024204631-A1 · Jun 20, 2024 · US
Brush holder assembly
US-12015229-B2 · Jun 18, 2024 · US
Electric motor, in particular a separately excited synchronous motor
US-11545868-B2 · Jan 3, 2023 · US
Brush holder assembly
US-2022140557-A1 · May 5, 2022 · US
Electric motor, in particular a separately excited synchronous motor
US-2021376683-A1 · Dec 2, 2021 · US
Brush assembly
US-11158988-B2 · Oct 26, 2021 · US
Brush assembly
US-2021013688-A1 · Jan 14, 2021 · US
Assembly comprising brush cage and spiral spring, and corresponding brush-holder, electric motor and motor vehicle starter
US-10700485-B2 · Jun 30, 2020 · US
Brush cage for motor vehicle starter, and corresponding brush holder, electric motor and motor vehicle starter
US-10574013-B2 · Feb 25, 2020 · US
Brush holder apparatus having brush terminal
US-10284056-B2 · May 7, 2019 · US
Brush holder apparatus having brush terminal
US-2018301962-A1 · Oct 18, 2018 · US
Spiral spring of a brush-holder
US-2018241274-A1 · Aug 23, 2018 · US
Brush for a commutator and commutator motor having the brush
US-9954334-B2 · Apr 24, 2018 · US
Brush box for electric machine brush-holder and corresponding brush-holder
US-9935415-B2 · Apr 3, 2018 · US
Brush-holder
US-2018040997-A1 · Feb 8, 2018 · US
Assembly comprising a brush cage and a spiral spring, and corresponding brush-holder, electric motor and motor vehicle starter
US-2017331242-A1 · Nov 16, 2017 · US
Improved brush cage for motor vehicle starter, and corresponding brush holder, electric motor and motor vehicle starter
US-2017310066-A1 · Oct 26, 2017 · US