Method and apparatus to improve lift to drag ratio of a rotor blade
US-2018362145-A1 · Dec 20, 2018 · US
Aerodynamic features
Aerodynamic features · 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 | B64C11/18 |
| Official title | Aerodynamic features |
| Display label | Aerodynamic features |
| Total patents | 267 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 12 |
| 2016 | 13 |
| 2017 | 30 |
| 2018 | 16 |
| 2019 | 43 |
| 2020 | 31 |
| 2021 | 17 |
| 2022 | 22 |
| 2023 | 24 |
| 2024 | 30 |
| 2025 | 21 |
| 2026 | 8 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Wing and Propeller Design for Aircraft
US-2018297693-A1 · Oct 18, 2018 · US
Propeller blade indentations for improved aerodynamic performance and sound control
US-10011346-B2 · Jul 3, 2018 · US
Propeller for an aircraft turbomachine, including a blade retaining structure through which the aerodynamic part of each blade passes
US-9902501-B2 · Feb 27, 2018 · US
Bistable pitch propeller system with bidirectional propeller rotation
US-2018029693-A1 · Feb 1, 2018 · US
Turbomachine with multi-diameter propeller
US-2017369153-A1 · Dec 28, 2017 · US
Propeller
US-9849968-B2 · Dec 26, 2017 · US
Propeller Blade Beta Twist
US-2017355454-A1 · Dec 14, 2017 · US
Method for modeling a blade of a non-ducted propeller
US-2017300612-A1 · Oct 19, 2017 · US
Aircraft turboprop engine comprising two coaxial propellers
US-9776707-B2 · Oct 3, 2017 · US
Aerial vehicle adaptable propeller blades
US-2017274978-A1 · Sep 28, 2017 · US
Embedded dielectric structures for active flow control plasma sources
US-9771146-B2 · Sep 26, 2017 · US
Aerofoil
US-2017241278-A1 · Aug 24, 2017 · US
Motor and propeller thrust generating device
US-2017217566-A1 · Aug 3, 2017 · US
Differential blade design for propeller noise reduction
US-9714575-B2 · Jul 25, 2017 · US
Resonant blades using an aperture for cancellation of propeller generated noise
US-9701394-B2 · Jul 11, 2017 · US
Propeller rotor for a vertical take off and landing aircraft
US-2017183090-A1 · Jun 29, 2017 · US
Boundary layer ingesting blade
US-9688395-B2 · Jun 27, 2017 · US
Propeller surface area treatments for sound dampening
US-2017174338-A1 · Jun 22, 2017 · US
Propeller treatments for sound dampening
US-2017174321-A1 · Jun 22, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B64C11/18?
- CPC B64C11/18 is the Cooperative Patent Classification code for “Aerodynamic features.”
- How many patents are filed under CPC B64C11/18 (Aerodynamic features)?
- Our database includes 267 publications tagged with this CPC code.
- Is patent activity under CPC B64C11/18 growing?
- Publication counts under this code: 30 in 2024 vs 21 in 2025 (latest complete years).