Measurement method for steam valve and measurement device for steam valve
US-2024344631-A1 · Oct 17, 2024 · 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 | F02C9/20 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 697 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 46 |
| 2016 | 58 |
| 2017 | 67 |
| 2018 | 86 |
| 2019 | 67 |
| 2020 | 87 |
| 2021 | 59 |
| 2022 | 59 |
| 2023 | 64 |
| 2024 | 54 |
| 2025 | 39 |
| 2026 | 11 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Distributed electric tip fans for distortion tolerance of turbofan engines
US-2024209796-A1 · Jun 27, 2024 · US
Method for operating a gas turbine installation and the same
US-2016377000-A1 · Dec 29, 2016 · US
Free gas turbine with constant temperature-corrected gas generator speed
US-9512784-B2 · Dec 6, 2016 · US
Gas turbine engine uncontrolled high thrust accommodation system and method
US-2016341066-A1 · Nov 24, 2016 · US
Systems and methods for detecting the onset of compressor stall
US-9500200-B2 · Nov 22, 2016 · US
Vsv actuation arrangement
US-2016312650-A1 · Oct 27, 2016 · US
Method and system to increase gas turbine engine durability
US-2016252019-A1 · Sep 1, 2016 · US
Device for improved air and fuel distribution to a combustor
US-2016238254-A1 · Aug 18, 2016 · US
Variable Geometry Gas Turbine Engine For Use In Inclement Weather
US-2016230677-A1 · Aug 11, 2016 · US
Device for improved air and fuel distribution to a combustor
US-9353949-B2 · May 31, 2016 · US
Vane position sensor installation within a turbine case
US-2016123844-A1 · May 5, 2016 · US
System and method for gas turbine operation
US-9255525-B2 · Feb 9, 2016 · US
Compact aero-thermo model based control system
US-2016003165-A1 · Jan 7, 2016 · US
Compact Aero-Thermo Model Based Tip Clearance Management
US-2015378364-A1 · Dec 31, 2015 · US
Compact Aero-Thermo Model Based Engine Power Control
US-2015378334-A1 · Dec 31, 2015 · US
Actuator control device
US-2015377147-A1 · Dec 31, 2015 · US
Method and system for combustion control for gas turbine system with exhaust gas recirculation
US-2015377148-A1 · Dec 31, 2015 · US
Compact Aero-Thermo Model Base Point Linear System Based State Estimator
US-2015370233-A1 · Dec 24, 2015 · US
Method for operating a gas turbine below the nominal power thereof
US-2015369137-A1 · Dec 24, 2015 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02C9/20?
- CPC F02C9/20 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F02C9/20 (Mechanical Engineering)?
- Our database includes 697 publications tagged with this CPC code.
- Is patent activity under CPC F02C9/20 growing?
- Publication counts under this code: 54 in 2024 vs 39 in 2025 (latest complete years).