Booster compressor with speed change system
US-2017363098-A1 · Dec 21, 2017 · US
Details or means for fluid extraction
Details or means for fluid extraction · 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 | F04D27/023 |
| Official title | {Details or means for fluid extraction} |
| Display label | Details or means for fluid extraction |
| Total patents | 290 |
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 | 30 |
| 2017 | 39 |
| 2018 | 25 |
| 2019 | 39 |
| 2020 | 33 |
| 2021 | 26 |
| 2022 | 14 |
| 2023 | 30 |
| 2024 | 14 |
| 2025 | 19 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Compressor Bleed Valve Health Assessment Systems and Methods
US-2017298836-A1 · Oct 19, 2017 · US
Self-actuated, in-line bleed valve
US-9784184-B2 · Oct 10, 2017 · US
High pressure compressor augmented bleed with autonomously actuated valve
US-2017254274-A1 · Sep 7, 2017 · US
Systems and methods for a compressor diffusion slot
US-2017191484-A1 · Jul 6, 2017 · US
Full-area bleed valves
US-9689315-B2 · Jun 27, 2017 · US
Hot Gas Bypass for Two-Stage Compressor
US-2017176053-A1 · Jun 22, 2017 · US
Methods and apparatus to adjust bleed ports on an aircraft engine
US-9657647-B2 · May 23, 2017 · US
System and method for increasing coupling of an axle rotary transformer
US-2017125162-A1 · May 4, 2017 · US
Machined aerodynamic intercompressor bleed ports
US-9638201-B2 · May 2, 2017 · US
Detection of high stage valve leakage by pressure lockup
US-2017067578-A1 · Mar 9, 2017 · US
Pressure limiters
US-2016376913-A1 · Dec 29, 2016 · US
Gas turbine engine two degree of freedom variable bleed valve for ice extraction
US-9518513-B2 · Dec 13, 2016 · US
Translating gaspath bleed valve
US-2016348685-A1 · Dec 1, 2016 · US
Apparatus and method for bleeding off compressor air in a jet engine
US-9506424-B2 · Nov 29, 2016 · US
Pneumatic porting via self-actuated dual pivot flapper valve
US-2016341130-A1 · Nov 24, 2016 · US
Turbomachine with bleed valves located at the intermediate case
US-9476362-B2 · Oct 25, 2016 · US
Recirculation valve and turbocharger
US-9476351-B2 · Oct 25, 2016 · US
Centrifugal compressor and manufacturing method thereof
US-9470233-B2 · Oct 18, 2016 · US
Self-actuated, in-line bleed valve
US-2016273450-A1 · Sep 22, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04D27/023?
- CPC F04D27/023 is the Cooperative Patent Classification code for “Details or means for fluid extraction.”
- How many patents are filed under CPC F04D27/023 (Details or means for fluid extraction)?
- Our database includes 290 publications tagged with this CPC code.
- Is patent activity under CPC F04D27/023 growing?
- Publication counts under this code: 14 in 2024 vs 19 in 2025 (latest complete years).