Systems and methods for vertical takeoff and landing vehicle with stator stabilization
US-2024417070-A1 · Dec 19, 2024 · US
Means acting on blades
Means acting on 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 | B64C27/72 |
| Official title | Means acting on blades |
| Display label | Means acting on blades |
| Total patents | 189 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 18 |
| 2016 | 18 |
| 2017 | 15 |
| 2018 | 10 |
| 2019 | 27 |
| 2020 | 22 |
| 2021 | 15 |
| 2022 | 14 |
| 2023 | 13 |
| 2024 | 18 |
| 2025 | 17 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Rotary-Wing Vehicle, and Rotary-Wing Turbine
US-2024328327-A1 · Oct 3, 2024 · US
Free propeller assembly structure and aircraft structure having the same
US-12077285-B2 · Sep 3, 2024 · US
Rotor assembly apparatus
US-2018257766-A1 · Sep 13, 2018 · US
Electro-hydraulic on-blade actuation system
US-10053215-B2 · Aug 21, 2018 · US
Teetering Rotor Hub System
US-2018194462-A1 · Jul 12, 2018 · US
Rotor assembly apparatus
US-9994310-B2 · Jun 12, 2018 · US
Rotorcraft state control
US-9944388-B2 · Apr 17, 2018 · US
Rotor hub for a rotorcraft
US-9896199-B2 · Feb 20, 2018 · US
Main rotor trim tab retention system, an aircraft employing same and a method of replacing a trim tab assembly from blade housing
US-2017341744-A1 · Nov 30, 2017 · US
Lubricant level sensing for an actuator
US-2017336024-A1 · Nov 23, 2017 · US
Rotor Assembly with High Lock-Number Blades
US-2017320567-A1 · Nov 9, 2017 · US
Coaxial rotor low-speed mixing
US-9802694-B2 · Oct 31, 2017 · US
Adaptively-twistable blade, and an aircraft including such a blade
US-9802699-B2 · Oct 31, 2017 · US
Method of manufacturing a control cuff for a rotor blade of a hinge and bearingless rotor
US-2017283051-A1 · Oct 5, 2017 · US
Cyclic blade speed control
US-9771153-B2 · Sep 26, 2017 · US
Rotor drive system
US-9758245-B2 · Sep 12, 2017 · US
Individual blade control utilizing pneumatic muscles
US-9751624-B2 · Sep 5, 2017 · US
Self-latching piezocomposite actuator
US-9741922-B2 · Aug 22, 2017 · US
Systems for shape memory alloy structures
US-2017203829-A1 · Jul 20, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B64C27/72?
- CPC B64C27/72 is the Cooperative Patent Classification code for “Means acting on blades.”
- How many patents are filed under CPC B64C27/72 (Means acting on blades)?
- Our database includes 189 publications tagged with this CPC code.
- Is patent activity under CPC B64C27/72 growing?
- Publication counts under this code: 18 in 2024 vs 17 in 2025 (latest complete years).