Electrodynamic machine comprising a cooling duct
US-2017264169-A1 · Sep 14, 2017 · US
by gaseous cooling medium circulating wholly within the machine casing (H02K9/10 takes precedence)
by gaseous cooling medium circulating wholly within the machine casing (H02K9/10 takes precedence) · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02K9/08 |
| Official title | by gaseous cooling medium circulating wholly within the machine casing (H02K9/10 takes precedence) |
| Display label | by gaseous cooling medium circulating wholly within the machine casing (H02K9/10 takes precedence) |
| Total patents | 300 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 19 |
| 2016 | 25 |
| 2017 | 26 |
| 2018 | 20 |
| 2019 | 28 |
| 2020 | 37 |
| 2021 | 28 |
| 2022 | 36 |
| 2023 | 24 |
| 2024 | 31 |
| 2025 | 22 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Generator for a power plant
US-2017257007-A1 · Sep 7, 2017 · US
Star disk for an electric machine
US-9742235-B2 · Aug 22, 2017 · US
Compressor system
US-2017237317-A1 · Aug 17, 2017 · US
Axial-Gap Dynamo-Electric Machine
US-2017194823-A1 · Jul 6, 2017 · US
Electrically rotating machine
US-9680340-B2 · Jun 13, 2017 · US
Electronic housing for an electric motor with protection against accidental contact
US-9667115-B2 · May 30, 2017 · US
An electric machine
US-2017141652-A1 · May 18, 2017 · US
Rotor with blade portions and rotating electric machine having the same
US-9653953-B2 · May 16, 2017 · US
Radial lead seal assembly for a generator and method incorporating the same
US-9627938-B2 · Apr 18, 2017 · US
Increasing the apparent power of gas-cooled turbogenerators by way of increased pressure in the housing
US-2017104391-A1 · Apr 13, 2017 · US
Rotating electrical machine
US-9621010-B2 · Apr 11, 2017 · US
Electric machine with closed circuit air cooling
US-9621007-B2 · Apr 11, 2017 · US
Drive module for a vehicle
US-9614416-B2 · Apr 4, 2017 · US
Rotary electric machine
US-2017033633-A1 · Feb 2, 2017 · US
Radial lead seal assembly for a generator and method incorporating the same
US-2017018988-A1 · Jan 19, 2017 · US
Apparatus and method for induction motor heat transfer
US-9520755-B2 · Dec 13, 2016 · US
Wind turbine generator having an eddy current brake, wind turbine having such a generator, and associated methods
US-9518562-B2 · Dec 13, 2016 · US
Star Disk for an Electric Machine
US-2016352173-A1 · Dec 1, 2016 · US
Electric machine for a hybrid or electric vehicle
US-9458851-B2 · Oct 4, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02K9/08?
- CPC H02K9/08 is the Cooperative Patent Classification code for “by gaseous cooling medium circulating wholly within the machine casing (H02K9/10 takes precedence).”
- How many patents are filed under CPC H02K9/08 (by gaseous cooling medium circulating wholly within the machine casing (H02K9/10 takes precedence))?
- Our database includes 300 publications tagged with this CPC code.
- Is patent activity under CPC H02K9/08 growing?
- Publication counts under this code: 31 in 2024 vs 22 in 2025 (latest complete years).