System and method for controlling current distribution to electrical brushes used in dynamoelectric machine
US-12573923-B2 · Mar 10, 2026 · US
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by use of impedance between brushes or segments
by use of impedance between brushes or segments · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01R39/54 |
| Official title | by use of impedance between brushes or segments |
| Display label | by use of impedance between brushes or segments |
| Total patents | 8 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2018 | 2 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 1 |
| 2023 | 1 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
System and method for controlling current distribution to electrical brushes used in dynamoelectric machine
US-2025141323-A1 · May 1, 2025 · US
Electrical contact device and rotating electric machine including the electrical contact device
US-11670901-B2 · Jun 6, 2023 · US
Driving device and window lift actuator using the same
US-11152841-B2 · Oct 19, 2021 · US
Electrical contact device and rotating electric machine including the electrical contact device
US-2020127427-A1 · Apr 23, 2020 · US
Driving device and window lift actuator using the same
US-2019036427-A1 · Jan 31, 2019 · US
Power terminal for arcless power connector
US-10020613-B2 · Jul 10, 2018 · US
Power terminal for arcless power connector
US-2018034198-A1 · Feb 1, 2018 · US