Motor cooling system and motor cooling monitoring method
US-12218571-B2 · Feb 4, 2025 · US
Protection against failure of cooling arrangements, e.g. due to loss of cooling medium or due to interruption of the circulation of cooling medium
Protection against failure of cooling arrangements, e.g. due to loss of cooling medium or due to interruption of the circulation of cooling medium · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02K9/24 |
| Official title | Protection against failure of cooling arrangements, e.g. due to loss of cooling medium or due to interruption of the circulation of cooling medium |
| Display label | Protection against failure of cooling arrangements, e.g. due to loss of cooling medium or due to interruption of the circulation of cooling medium |
| Total patents | 55 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 6 |
| 2017 | 7 |
| 2018 | 6 |
| 2019 | 10 |
| 2020 | 9 |
| 2021 | 4 |
| 2022 | 4 |
| 2023 | 2 |
| 2024 | 4 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Motor cooling system and motor cooling monitoring method
US-2024421666-A1 · Dec 19, 2024 · US
Method for controlling the temperature of an electric motor, and fluid supply device
US-2024333101-A1 · Oct 3, 2024 · US
Power generator cooler performance monitoring device
US-2024322652-A1 · Sep 26, 2024 · US
Machine cooling circuit of an electric machine, overall cooling circuit of a motor vehicle, and motor vehicle
US-2024186866-A1 · Jun 6, 2024 · US
Electrical apparatus with a duct having a fire wall
US-11698604-B2 · Jul 11, 2023 · US
Oil Temperature Control Method, Controller, Powertrain, and Electric Vehicle
US-2023150352-A1 · May 18, 2023 · US
Fluid apparatus
US-11502630-B2 · Nov 15, 2022 · US
Drive device and drive device control method
US-2022321050-A1 · Oct 6, 2022 · US
Electric machine with a radial shaft sealing ring
US-2022320963-A1 · Oct 6, 2022 · US
Electrical apparatus and image forming apparatus
US-2022299936-A1 · Sep 22, 2022 · US
Pressure relief systems for generators
US-11031845-B2 · Jun 8, 2021 · US
Rotary electric machine having heat sink for semiconductor device of controller
US-11025140-B2 · Jun 1, 2021 · US
Motor and ducted fan having heat radiation portions for cooling magnets
US-11025134-B2 · Jun 1, 2021 · US
Optimised oil pressure regulation
US-2021006130-A1 · Jan 7, 2021 · US
Rotary electric machine
US-2020395821-A1 · Dec 17, 2020 · US
Track-bound vehicle electric machine
US-10855145-B2 · Dec 1, 2020 · US
Fluid apparatus
US-2020313585-A1 · Oct 1, 2020 · US
Cooling apparatus for rotating electrical machine
US-10790727-B2 · Sep 29, 2020 · US
Assembly and method for preventing axial migration of springs in generator rotors
US-10749395-B2 · Aug 18, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02K9/24?
- CPC H02K9/24 is the Cooperative Patent Classification code for “Protection against failure of cooling arrangements, e.g. due to loss of cooling medium or due to interruption of the circulation of cooling medium.”
- How many patents are filed under CPC H02K9/24 (Protection against failure of cooling arrangements, e.g. due to loss of cooling medium or due to interruption of the circulation of cooling medium)?
- Our database includes 55 publications tagged with this CPC code.
- Is patent activity under CPC H02K9/24 growing?
- Publication counts under this code: 4 in 2024 vs 1 in 2025 (latest complete years).