Pivot angle control of blades of a wind turbine with hinged blades
US-2022397091-A1 · Dec 15, 2022 · US
by changing the active surface of the wind engaging parts, e.g. reefing or furling
by changing the active surface of the wind engaging parts, e.g. reefing or furling · 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 | F03D7/0236 |
| Official title | {by changing the active surface of the wind engaging parts, e.g. reefing or furling} |
| Display label | by changing the active surface of the wind engaging parts, e.g. reefing or furling |
| Total patents | 103 |
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 | 4 |
| 2016 | 3 |
| 2017 | 4 |
| 2018 | 5 |
| 2019 | 5 |
| 2020 | 5 |
| 2021 | 21 |
| 2022 | 23 |
| 2023 | 13 |
| 2024 | 14 |
| 2025 | 3 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Back-up power supply for wind turbines
US-2022349382-A1 · Nov 3, 2022 · US
Yaw systems and methods
US-2022341391-A1 · Oct 27, 2022 · US
Wind turbine with a blade carrying structure having aerodynamic properties
US-11480151-B2 · Oct 25, 2022 · US
Extendable wind turbine blade
US-2022325693-A1 · Oct 13, 2022 · US
Wind turbine with a pivoted rotor blades, wire and release mechanism for stopping
US-11466663-B2 · Oct 11, 2022 · US
Pitch assembly and related methods
US-2022290655-A1 · Sep 15, 2022 · US
Thrust control for wind turbines using active sensing of wind turbulence
US-2022220935-A1 · Jul 14, 2022 · US
Control method and device for avoiding run-away and wind turbine
US-11365716-B2 · Jun 21, 2022 · US
Method for controlling a tip height of a wind turbine
US-11333128-B2 · May 17, 2022 · US
Devices and methods for determining deflection of rotor blades of a wind turbine
US-2022128039-A1 · Apr 28, 2022 · US
System and method for protecting a wind turbine from overloading due to pitch system fault
US-11313354-B2 · Apr 26, 2022 · US
Wind turbine blade with multiple inner blade profiles
US-2022034298-A1 · Feb 3, 2022 · US
System and method for protecting a wind turbine from overloading due to pitch system fault
US-2021396208-A1 · Dec 23, 2021 · US
Method for operating a wind power installation, controller for operating a wind power installation, and wind farm
US-2021396209-A1 · Dec 23, 2021 · US
Pitch control method and system of symmetrical-airfoil vertical axis wind turbine
US-2021372372-A1 · Dec 2, 2021 · US
A hinged wind turbine blade defining an angle in a flap-wise direction
US-2021340954-A1 · Nov 4, 2021 · US
Noise reduction in a wind turbine with hinged blades
US-2021324831-A1 · Oct 21, 2021 · US
System and method for mitigating loads acting on a rotor blade of a wind turbine
US-2021317817-A1 · Oct 14, 2021 · US
A wind turbine with a blade carrying structure having aerodynamic properties
US-2021310463-A1 · Oct 7, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F03D7/0236?
- CPC F03D7/0236 is the Cooperative Patent Classification code for “by changing the active surface of the wind engaging parts, e.g. reefing or furling.”
- How many patents are filed under CPC F03D7/0236 (by changing the active surface of the wind engaging parts, e.g. reefing or furling)?
- Our database includes 103 publications tagged with this CPC code.
- Is patent activity under CPC F03D7/0236 growing?
- Publication counts under this code: 14 in 2024 vs 3 in 2025 (latest complete years).