Method of calibrating the air flow of a swirler of a gas turbine burner
US-2016305666-A1 · Oct 20, 2016 · US
Controlling the air flow
Controlling the air flow · 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 | F23R3/26 |
| Official title | Controlling the air flow |
| Display label | Controlling the air flow |
| Total patents | 492 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 36 |
| 2016 | 54 |
| 2017 | 33 |
| 2018 | 45 |
| 2019 | 50 |
| 2020 | 48 |
| 2021 | 61 |
| 2022 | 49 |
| 2023 | 50 |
| 2024 | 27 |
| 2025 | 29 |
| 2026 | 10 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fuel injector device
US-2016290648-A1 · Oct 6, 2016 · US
Combustion equipment
US-2016290225-A1 · Oct 6, 2016 · US
Air shield for a fuel injector of a combustor
US-2016265782-A1 · Sep 15, 2016 · US
Variable volume combustor with nested fuel manifold system
US-9441544-B2 · Sep 13, 2016 · US
Device for improved air and fuel distribution to a combustor
US-2016238254-A1 · Aug 18, 2016 · US
Sealing of a radial gap between effusion tiles of a gas-turbine combustion chamber
US-2016238247-A1 · Aug 18, 2016 · US
Two-stage combustor for gas turbine engine
US-9416972-B2 · Aug 16, 2016 · US
Air shrouds with air wipes
US-2016230997-A1 · Aug 11, 2016 · US
Turbine system with exhaust gas recirculation, separation and extraction
US-2016222883-A1 · Aug 4, 2016 · US
Turbine system with exhaust gas recirculation, separation and extraction
US-2016222884-A1 · Aug 4, 2016 · US
Gas turbine engine components and cooling cavities
US-2016178201-A1 · Jun 23, 2016 · US
Device for improved air and fuel distribution to a combustor
US-9353949-B2 · May 31, 2016 · US
Systems and methods for changing a speed of a compressor boost stage in a gas turbine
US-9328667-B2 · May 3, 2016 · US
Gas turbine engine and method of operating thereof
US-9328663-B2 · May 3, 2016 · US
Can annular combustion arrangement with flow tripping device
US-9297532-B2 · Mar 29, 2016 · US
Method and apparatus for optimizing the operation of a turbine system under flexible loads
US-9297316-B2 · Mar 29, 2016 · US
System for providing a working fluid to a combustor
US-9291350-B2 · Mar 22, 2016 · US
Damping device and gas turbine combustor
US-9291104-B2 · Mar 22, 2016 · US
Structural frame integrated with variable-vectoring flow control for use in turbine systems
US-2016061054-A1 · Mar 3, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F23R3/26?
- CPC F23R3/26 is the Cooperative Patent Classification code for “Controlling the air flow.”
- How many patents are filed under CPC F23R3/26 (Controlling the air flow)?
- Our database includes 492 publications tagged with this CPC code.
- Is patent activity under CPC F23R3/26 growing?
- Publication counts under this code: 27 in 2024 vs 29 in 2025 (latest complete years).