Externally excited electric machine
US-12334794-B2 · Jun 17, 2025 · US
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Means structurally associated with the brushes for interrupting current (H01R39/58 takes precedence)
Means structurally associated with the brushes for interrupting current (H01R39/58 takes precedence) · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01R39/59 |
| Official title | Means structurally associated with the brushes for interrupting current (H01R39/58 takes precedence) |
| Display label | Means structurally associated with the brushes for interrupting current (H01R39/58 takes precedence) |
| Total patents | 15 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 5 |
| 2018 | 3 |
| 2020 | 2 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Predictive brush control for separately excited electric motors
US-12027806-B2 · Jul 2, 2024 · US
Externally excited electric machine
US-2023246510-A1 · Aug 3, 2023 · US
Predictive brush control for separately excited electric motors
US-2022311198-A1 · Sep 29, 2022 · 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
Drive mechanism including brushed motor
US-10554105-B2 · Feb 4, 2020 · US
Motor vehicle starter provided with a thermal protection system
US-10107249-B2 · Oct 23, 2018 · US
Brush wear indicator
US-10079463-B2 · Sep 18, 2018 · US
Brush-holder for a motor vehicle starter provided with a thermal protection system, and corresponding motor vehicle starter
US-10050489-B2 · Aug 14, 2018 · US
Motor vehicle starter provided with a thermal protection system
US-2017370341-A1 · Dec 28, 2017 · US
Drive Mechanism Including Brushed Motor
US-2017373568-A1 · Dec 28, 2017 · 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
Electrical device with low friction contact parts
US-9660405-B2 · May 23, 2017 · US
Electrical Device With Low Friction Contact Parts
US-2017040765-A1 · Feb 9, 2017 · US
Brush-holder for a motor vehicle starter provided with a thermal protection system, and corresponding motor vehicle starter
US-2016336832-A1 · Nov 17, 2016 · US