Shroudless adaptive fan with free turbine
US-9850822-B2 · Dec 26, 2017 · US
Mechanical Engineering
Mechanical Engineering · 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 | F02C9/22 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 282 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 18 |
| 2016 | 27 |
| 2017 | 22 |
| 2018 | 23 |
| 2019 | 23 |
| 2020 | 41 |
| 2021 | 41 |
| 2022 | 27 |
| 2023 | 30 |
| 2024 | 20 |
| 2025 | 10 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Turbine engine and method of operating
US-2017342908-A1 · Nov 30, 2017 · US
Fuel system
US-9828916-B2 · Nov 28, 2017 · US
2-shaft gas turbine, and the control method of opening degree of inlet guide vane of the gas turbine
US-2017284308-A1 · Oct 5, 2017 · US
Ensuring non-excessive variation of gradients in auto-tuning a gas turbine engine
US-9765702-B2 · Sep 19, 2017 · US
Cooling air for variable area turbine
US-2017218844-A1 · Aug 3, 2017 · US
Setting control for gas turbine engine component(s)
US-2017211485-A1 · Jul 27, 2017 · US
Engine-induced aircraft cabin resonance reduction system and method
US-9695752-B2 · Jul 4, 2017 · US
Model-based feed forward approach to coordinated air-fuel control on a gas turbine
US-9677476-B2 · Jun 13, 2017 · US
Axial-flow turbine and power plant including the same
US-9631514-B2 · Apr 25, 2017 · US
Jet engine actuation system
US-9617922-B2 · Apr 11, 2017 · US
Control system and method of controlling a variable area gas turbine engine
US-2017074173-A1 · Mar 16, 2017 · US
Free gas turbine with constant temperature-corrected gas generator speed
US-2017037785-A1 · Feb 9, 2017 · US
Turbocharger with variable turbine geometry
US-9556882-B2 · Jan 31, 2017 · US
Gas-turbine control device, gas turbine, and gas-turbine control method
US-2017002748-A1 · Jan 5, 2017 · US
Shroudless adaptive fan with free turbine
US-2016376998-A1 · Dec 29, 2016 · US
Free gas turbine with constant temperature-corrected gas generator speed
US-9512784-B2 · Dec 6, 2016 · US
Combustion stability logic during off-load transients
US-2016348593-A1 · Dec 1, 2016 · US
Adaptive aircraft engine and aircraft having an adaptive engine
US-2016347463-A1 · Dec 1, 2016 · US
Gas turbine engine uncontrolled high thrust accommodation system and method
US-2016341066-A1 · Nov 24, 2016 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02C9/22?
- CPC F02C9/22 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F02C9/22 (Mechanical Engineering)?
- Our database includes 282 publications tagged with this CPC code.
- Is patent activity under CPC F02C9/22 growing?
- Publication counts under this code: 20 in 2024 vs 10 in 2025 (latest complete years).