Motor unit
US-2024154501-A1 · May 9, 2024 · US
Structural association of machines with devices for cleaning or drying cooling medium, e.g. with filters
Structural association of machines with devices for cleaning or drying cooling medium, e.g. with filters · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02K9/26 |
| Official title | Structural association of machines with devices for cleaning or drying cooling medium, e.g. with filters |
| Display label | Structural association of machines with devices for cleaning or drying cooling medium, e.g. with filters |
| Total patents | 178 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 6 |
| 2017 | 3 |
| 2018 | 8 |
| 2019 | 11 |
| 2020 | 16 |
| 2021 | 16 |
| 2022 | 27 |
| 2023 | 24 |
| 2024 | 34 |
| 2025 | 20 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Generator with jet pump having motive fluid for fluidly coupling to a cooling circuit
US-11155357-B2 · Oct 26, 2021 · US
Electric Wheel Assembly Applicable for Parallelly Mounted Dual-Tire Wheel, Axle, and Vehicle
US-2021221218-A1 · Jul 22, 2021 · US
Rotor of rotary electric machine and method for cooling rotary electric machine
US-11056941-B2 · Jul 6, 2021 · US
Lubrication device for vehicle drive-force transmitting apparatus
US-2021190201-A1 · Jun 24, 2021 · US
Desiccant saturation level monitoring
US-2021138386-A1 · May 13, 2021 · US
Wind power generation unit, electric motor, and airflow delivery device for electric motor air gap
US-2021099046-A1 · Apr 1, 2021 · US
Method to reduce oil shear drag in airgap
US-2021083555-A1 · Mar 18, 2021 · US
Optimised oil pressure regulation
US-2021006130-A1 · Jan 7, 2021 · US
Cooling device
US-10881033-B2 · Dec 29, 2020 · US
Integrated traction drive system
US-2020395811-A1 · Dec 17, 2020 · US
Machine having a liquid lubrication system and a shaft
US-2020378281-A1 · Dec 3, 2020 · US
Generator and wind turbine
US-2020373812-A1 · Nov 26, 2020 · US
Systems and methods for cooling an exercise device
US-2020368575-A1 · Nov 26, 2020 · US
Slip ring system and electrical machine having a slip ring system of this kind
US-10840774-B2 · Nov 17, 2020 · US
Cover for oil filter housing of an integrated drive generator
US-2020291836-A1 · Sep 17, 2020 · US
Generator with jet pump
US-2020216186-A1 · Jul 9, 2020 · US
Drive for a compressor element and water injected compressor device provided with such a drive
US-2020200177-A1 · Jun 25, 2020 · US
Cooling a wind turbine generator
US-10677226-B2 · Jun 9, 2020 · US
Electric unit
US-2020177052-A1 · Jun 4, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02K9/26?
- CPC H02K9/26 is the Cooperative Patent Classification code for “Structural association of machines with devices for cleaning or drying cooling medium, e.g. with filters.”
- How many patents are filed under CPC H02K9/26 (Structural association of machines with devices for cleaning or drying cooling medium, e.g. with filters)?
- Our database includes 178 publications tagged with this CPC code.
- Is patent activity under CPC H02K9/26 growing?
- Publication counts under this code: 34 in 2024 vs 20 in 2025 (latest complete years).