Forward load reduction structures for aft-most stages of high pressure compressors
US-2025215894-A1 · Jul 3, 2025 · US
with concentric rows of vanes;
with concentric rows of vanes; · 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 | F04D19/022 |
| Official title | {with concentric rows of vanes;} |
| Display label | with concentric rows of vanes; |
| Total patents | 64 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 10 |
| 2017 | 4 |
| 2018 | 5 |
| 2019 | 3 |
| 2020 | 6 |
| 2021 | 8 |
| 2022 | 5 |
| 2023 | 7 |
| 2024 | 8 |
| 2025 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Arrangement for pressurizing of fluid
US-12338828-B2 · Jun 24, 2025 · US
Drive unit having a cooling unit
US-12188487-B2 · Jan 7, 2025 · US
Forward load reduction structures for high pressure compressors
US-2024369072-A1 · Nov 7, 2024 · US
Extraction impeller for axial compressor
US-2024360837-A1 · Oct 31, 2024 · US
Arrangement for pressurizing of fluid
US-2024337264-A1 · Oct 10, 2024 · US
Bearing-less turbine
US-12078185-B2 · Sep 3, 2024 · US
Arrangement for pressurizing of fluid
US-12049900-B2 · Jul 30, 2024 · US
Fluid heat exchanger with pump
US-11953274-B2 · Apr 9, 2024 · US
Turbine circumferential dovetail leakage reduction
US-11920498-B2 · Mar 5, 2024 · US
Adjustable guide vane with convexly shaped, radially inner storage section for a gas turbine, in particular an aircraft gas turbine
US-11892012-B2 · Feb 6, 2024 · US
Electrical submersible pump with liquid-gas homogenizer
US-11767850-B2 · Sep 26, 2023 · US
Adjustable guide vane with convexly shaped, radially inner storage section for a gas turbine, in particular an aircraft gas turbine
US-2023235752-A1 · Jul 27, 2023 · US
Arrangement for pressurizing of fluid
US-2023235740-A1 · Jul 27, 2023 · US
Counter-rotating fan
US-11661943-B2 · May 30, 2023 · US
Arrangement for pressurizing of fluid
US-11639723-B2 · May 2, 2023 · US
Turbine circumferential dovetail leakage reduction
US-2023037224-A1 · Feb 2, 2023 · US
Guide vane
US-11555500-B2 · Jan 17, 2023 · US
Turbine circumferential dovetail leakage reduction
US-11486261-B2 · Nov 1, 2022 · US
Fluid heat exchanger with pump
US-2022341431-A1 · Oct 27, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04D19/022?
- CPC F04D19/022 is the Cooperative Patent Classification code for “with concentric rows of vanes;.”
- How many patents are filed under CPC F04D19/022 (with concentric rows of vanes;)?
- Our database includes 64 publications tagged with this CPC code.
- Is patent activity under CPC F04D19/022 growing?
- Publication counts under this code: 8 in 2024 vs 7 in 2025 (latest complete years).