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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incorporating lubricating or polishing ingredient
incorporating lubricating or polishing ingredient · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01R39/22 |
| Official title | incorporating lubricating or polishing ingredient |
| Display label | incorporating lubricating or polishing ingredient |
| Total patents | 16 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 4 |
| 2018 | 1 |
| 2019 | 3 |
| 2020 | 2 |
| 2021 | 1 |
| 2022 | 3 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Systems and methods to mitigate electrical voltage on a rotating shaft immersed in oil
US-12231007-B2 · Feb 18, 2025 · US
Motor, rotary apparatus including motor, and vehicle including air conditioning system including rotary apparatus
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DC motor
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Systems and methods to mitigate electrical voltage on a rotating shaft immersed in oil
US-2022006367-A1 · Jan 6, 2022 · US
DC motor for starter
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Starter, and formation of graphite cover layer for commutator surface
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Dc motor
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Dc motor for starter
US-2019393662-A1 · Dec 26, 2019 · US
Starter, and formation of graphite cover layer for commutator surface
US-2019305652-A1 · Oct 3, 2019 · US
Metal-carbonaceous brush and method of manufacturing the same
US-10199789-B2 · Feb 5, 2019 · US
Motor, rotary apparatus including motor, and vehicle including air conditioning system including rotary apparatus
US-2018069448-A1 · Mar 8, 2018 · US
Long-life metal sliding contacts
US-9450366-B2 · Sep 20, 2016 · US
Metal-carbonaceous brush and method of manufacturing the same
US-2016240989-A1 · Aug 18, 2016 · US
Fiber-on-tip contact design brush assemblies
US-9362697-B2 · Jun 7, 2016 · US
Carbon brush for fuel pump and method for manufacturing same
US-9337599-B2 · May 10, 2016 · US