Systems and methods for battery impedance matching to facilitate improved battery charging
US-12046935-B2 · Jul 23, 2024 · US
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with solid-contact collectors
with solid-contact collectors · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02K31/02 |
| Official title | with solid-contact collectors |
| Display label | with solid-contact collectors |
| Total patents | 9 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 2 |
| 2018 | 1 |
| 2020 | 1 |
| 2022 | 2 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Dc electric motor/generator with enhanced permanent magnet flux densities
US-2022190661-A1 · Jun 16, 2022 · US
DC electric motor/generator with enhanced permanent magnet flux densities
US-11218046-B2 · Jan 4, 2022 · US
Dual purpose no voltage winding design for bearingless AC homopolar and consequent pole motors and an AC homopolar flywheel energy storage system
US-10833557-B2 · Nov 10, 2020 · US
Dc electric motor/generator with enhanced permanent magnet flux densities
US-2018331593-A1 · Nov 15, 2018 · US
DC electric motor/generator with enhanced permanent magnet flux densities
US-9825496-B2 · Nov 21, 2017 · US
Homopolor generator pulsed welding generator subsystems
US-2017304926-A1 · Oct 26, 2017 · US
DC electric motor/generator with enhanced permanent magnet flux densities
US-9419483-B2 · Aug 16, 2016 · US
DC Electric Motor/Generator with Enhanced Permanent Magnet Flux Densities
US-2015001976-A1 · Jan 1, 2015 · US