Propeller assembly
US-2025289562-A1 · Sep 18, 2025 · US
actuated by the centrifugal force or the aerodynamic drag acting on the blades
actuated by the centrifugal force or the aerodynamic drag acting on the blades · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B64C11/343 |
| Official title | {actuated by the centrifugal force or the aerodynamic drag acting on the blades} |
| Display label | actuated by the centrifugal force or the aerodynamic drag acting on the blades |
| Total patents | 41 |
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 | 3 |
| 2017 | 3 |
| 2018 | 4 |
| 2019 | 5 |
| 2020 | 5 |
| 2021 | 5 |
| 2022 | 7 |
| 2023 | 6 |
| 2024 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hinged rotor blade to provide passive variable pitch
US-12172746-B2 · Dec 24, 2024 · US
Hinged rotor blade to provide passive variable pitch
US-2024059397-A1 · Feb 22, 2024 · US
Blade dovetail and retention apparatus
US-11834965-B2 · Dec 5, 2023 · US
Hinged rotor blade to provide passive variable pitch
US-11827335-B2 · Nov 28, 2023 · US
Bistable pitch propeller system with bidirectional propeller rotation
US-11702188-B2 · Jul 18, 2023 · US
Blade dovetail and retention apparatus
US-11697996-B2 · Jul 11, 2023 · US
Propeller blade arrangement
US-11577820-B2 · Feb 14, 2023 · US
Hinged rotor blade to provide passive variable pitch
US-2023029889-A1 · Feb 2, 2023 · US
Hinged rotor blade to provide passive variable pitch
US-11498657-B2 · Nov 15, 2022 · US
Blade dovetail and retention apparatus
US-11396822-B2 · Jul 26, 2022 · US
Bistable pitch propeller system with bidirectional propeller rotation
US-2022219807-A1 · Jul 14, 2022 · US
Blade Dovetail and Retention Apparatus
US-2022098991-A1 · Mar 31, 2022 · US
Blade Dovetail and Retention Apparatus
US-2022065118-A1 · Mar 3, 2022 · US
Blade Dovetail and Retention Apparatus
US-2022065117-A1 · Mar 3, 2022 · US
Bistable pitch propeller system with bidirectional propeller rotation
US-11254419-B2 · Feb 22, 2022 · US
Continuous variable pitch rotor system
US-2021380221-A1 · Dec 9, 2021 · US
Propeller blade arrangement
US-2021291961-A1 · Sep 23, 2021 · US
Hinged rotor blade to provide passive variable pitch
US-2021214070-A1 · Jul 15, 2021 · US
Hinged rotor blade to provide passive variable pitch
US-10994828-B2 · May 4, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B64C11/343?
- CPC B64C11/343 is the Cooperative Patent Classification code for “actuated by the centrifugal force or the aerodynamic drag acting on the blades.”
- How many patents are filed under CPC B64C11/343 (actuated by the centrifugal force or the aerodynamic drag acting on the blades)?
- Our database includes 41 publications tagged with this CPC code.
- Is patent activity under CPC B64C11/343 growing?
- Publication counts under this code: 2 in 2024 vs 1 in 2025 (latest complete years).