Systems and methods to mitigate electrical voltage on a rotating shaft immersed in oil
US-2025233493-A1 · Jul 17, 2025 · US
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by air blast; by surrounding collector with non-conducting liquid or gas
by air blast; by surrounding collector with non-conducting liquid or gas · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01R39/48 |
| Official title | by air blast; by surrounding collector with non-conducting liquid or gas |
| Display label | by air blast; by surrounding collector with non-conducting liquid or gas |
| Total patents | 18 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 3 |
| 2017 | 3 |
| 2018 | 2 |
| 2021 | 1 |
| 2022 | 1 |
| 2024 | 1 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electric brush module and x-ray ct apparatus
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Systems and methods to mitigate electrical voltage on a rotating shaft immersed in oil
US-12231007-B2 · Feb 18, 2025 · US
Discharge device for discharging electrical currents and machine comprising such a discharge device
US-2024339896-A1 · Oct 10, 2024 · US
Systems and methods to mitigate electrical voltage on a rotating shaft immersed in oil
US-2022006367-A1 · Jan 6, 2022 · US
Combined cooling and dust extrusion device and method
US-10931173-B2 · Feb 23, 2021 · US
Current carrying systems and methods of assembling the same
US-10027076-B2 · Jul 17, 2018 · US
Combined cooling and dust extrusion device and method
US-2018083511-A1 · Mar 22, 2018 · US
Blade wheel for a rotary electric machine and rotary electric machine comprising a blade wheel
US-9689267-B2 · Jun 27, 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
Current carrying systems and methods of assembling the same
US-2016380420-A1 · Dec 29, 2016 · US
Abrasion removal system
US-2016279682-A1 · Sep 29, 2016 · US
Current carrying systems and methods of assembling the same
US-9431782-B2 · Aug 30, 2016 · US
Current carrying systems and methods of assembling the same
US-2015244122-A1 · Aug 27, 2015 · US
Electrical machine with fitting sleeve
US-9024503-B2 · May 5, 2015 · US
Method and Device for Sensorless Control of a Separately Excited Synchronous Machine
US-2015054362-A1 · Feb 26, 2015 · US
Slip ring system
US-2015028719-A1 · Jan 29, 2015 · US