Stator for an electric machine, electric machine, stator cooling system, and method for cooling a stator
US-2024223027-A1 · Jul 4, 2024 · US
in which the rotor or stator space is fluid-tight, e.g. to provide for different cooling media for rotor and stator
in which the rotor or stator space is fluid-tight, e.g. to provide for different cooling media for rotor and stator · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02K9/197 |
| Official title | in which the rotor or stator space is fluid-tight, e.g. to provide for different cooling media for rotor and stator |
| Display label | in which the rotor or stator space is fluid-tight, e.g. to provide for different cooling media for rotor and stator |
| Total patents | 1,011 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 49 |
| 2016 | 48 |
| 2017 | 48 |
| 2018 | 74 |
| 2019 | 77 |
| 2020 | 105 |
| 2021 | 107 |
| 2022 | 104 |
| 2023 | 111 |
| 2024 | 144 |
| 2025 | 117 |
| 2026 | 27 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
End winding support and heat sink for liquid-cooled generator
US-2016329765-A1 · Nov 10, 2016 · US
Pump unit
US-9490668-B2 · Nov 8, 2016 · US
Liquid cooled motor for cabin air compressor
US-9467023-B2 · Oct 11, 2016 · US
Rotor assembly for an electric machine
US-2016285332-A1 · Sep 29, 2016 · US
Variable performance electric generator
US-2016211724-A1 · Jul 21, 2016 · US
Variable performance electric generator
US-2016211725-A1 · Jul 21, 2016 · US
Electric machine with combined air and water cooling
US-2016204680-A1 · Jul 14, 2016 · US
Rotor assembly for an electric machine
US-2016204663-A1 · Jul 14, 2016 · US
Linear motor cooling structure
US-9325222-B2 · Apr 26, 2016 · US
Electrically-isolated and liquid-cooled rotor and stator assemblies
US-9325224-B2 · Apr 26, 2016 · US
Internal cooling of magnetic core for electric machine
US-9225208-B2 · Dec 29, 2015 · US
Electrical machine with direct stator cooling
US-2015372568-A1 · Dec 24, 2015 · US
Electric compressor with the stator coils coated with resin, the resin having openings exposing the coils to the interior of the housing
US-9212661-B2 · Dec 15, 2015 · US
Motor
US-9214842-B2 · Dec 15, 2015 · US
High-speed high-power switched reluctance machine
US-2015357883-A1 · Dec 10, 2015 · US
Stator and rotating electrical machine having a resin mold portion with a bridge
US-9203271-B2 · Dec 1, 2015 · US
Electric machine and systems comprising the same
US-2015326074-A1 · Nov 12, 2015 · US
Cooling structure for motor
US-2015326083-A1 · Nov 12, 2015 · US
Electric motor provided with cooling structure
US-2015295474-A1 · Oct 15, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02K9/197?
- CPC H02K9/197 is the Cooperative Patent Classification code for “in which the rotor or stator space is fluid-tight, e.g. to provide for different cooling media for rotor and stator.”
- How many patents are filed under CPC H02K9/197 (in which the rotor or stator space is fluid-tight, e.g. to provide for different cooling media for rotor and stator)?
- Our database includes 1,011 publications tagged with this CPC code.
- Is patent activity under CPC H02K9/197 growing?
- Publication counts under this code: 144 in 2024 vs 117 in 2025 (latest complete years).