Hybrid compressor
US-10480519-B2 · Nov 19, 2019 · US
comprising axial flow and radial flow stages
comprising axial flow and radial flow stages · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F04D17/025 |
| Official title | {comprising axial flow and radial flow stages} |
| Display label | comprising axial flow and radial flow stages |
| Total patents | 138 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 11 |
| 2017 | 18 |
| 2018 | 12 |
| 2019 | 12 |
| 2020 | 11 |
| 2021 | 17 |
| 2022 | 15 |
| 2023 | 14 |
| 2024 | 11 |
| 2025 | 9 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Impeller shroud with slidable coupling for clearance control in a centrifugal compressor
US-10458429-B2 · Oct 29, 2019 · US
Centrifugal compressor apparatus
US-10428823-B2 · Oct 1, 2019 · US
Thermal caulking device
US-10369749-B2 · Aug 6, 2019 · US
Centrifugal fan
US-2019195230-A1 · Jun 27, 2019 · US
Fan and impeller thereof
US-10294945-B2 · May 21, 2019 · US
Compression system for a turbine engine
US-10294965-B2 · May 21, 2019 · US
Split intermediate case
US-10287979-B2 · May 14, 2019 · US
Modular fan blade
US-10202981-B2 · Feb 12, 2019 · US
Thermal caulking device
US-2019022954-A1 · Jan 24, 2019 · US
Reverse fin cooling fan
US-10167766-B2 · Jan 1, 2019 · US
Fan system with integrated fan-shroud channel for reduced recirculation flow
US-2018372113-A1 · Dec 27, 2018 · US
Electric fan assembly with integrated rotor module having quick assembly features
US-2018372107-A1 · Dec 27, 2018 · US
Compressor bleed apparatus for a turbine engine
US-2018355877-A1 · Dec 13, 2018 · US
Axi-centrifugal compressor
US-2018355791-A1 · Dec 13, 2018 · US
Centrifugal compressor assembly for use in a turbine engine and method of assembly
US-10113556-B2 · Oct 30, 2018 · US
Turbocharger systems with direct turbine interfaces
US-10087939-B2 · Oct 2, 2018 · US
Electronic device with heat-dissipating function and liquid-cooling radiator module thereof
US-2018255662-A1 · Sep 6, 2018 · US
Fan unit and cleaner having the same
US-2018249873-A1 · Sep 6, 2018 · US
Lng plant including an axial compressor and a centrifugal compressor
US-2018209427-A1 · Jul 26, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04D17/025?
- CPC F04D17/025 is the Cooperative Patent Classification code for “comprising axial flow and radial flow stages.”
- How many patents are filed under CPC F04D17/025 (comprising axial flow and radial flow stages)?
- Our database includes 138 publications tagged with this CPC code.
- Is patent activity under CPC F04D17/025 growing?
- Publication counts under this code: 11 in 2024 vs 9 in 2025 (latest complete years).