Propeller safety device
US-11866150-B2 · Jan 9, 2024 · US
Variable-diameter propellers; Mechanisms therefor
Variable-diameter propellers; Mechanisms therefor · 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 | B64C11/003 |
| Official title | {Variable-diameter propellers; Mechanisms therefor} |
| Display label | Variable-diameter propellers; Mechanisms therefor |
| Total patents | 30 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 7 |
| 2018 | 3 |
| 2019 | 3 |
| 2020 | 4 |
| 2021 | 5 |
| 2022 | 5 |
| 2023 | 1 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Propeller control system of air mobility
US-11845533-B2 · Dec 19, 2023 · US
Propeller control system of air mobility
US-2022402593-A1 · Dec 22, 2022 · US
Propeller safety device
US-2022289361-A1 · Sep 15, 2022 · US
Tip gap control systems with active blade tips
US-11370536-B2 · Jun 28, 2022 · US
Sacrificial blade tips for ducted aircraft
US-11273910-B2 · Mar 15, 2022 · US
Six degree of freedom aerial vehicle having reconfigurable propellers
US-11249477-B2 · Feb 15, 2022 · US
Tip Gap Control Systems with Active Blade Tips
US-2021396247-A1 · Dec 23, 2021 · US
Passive Tip Gap Management Systems for Ducted Aircraft
US-2021394895-A1 · Dec 23, 2021 · US
Sacrificial Blade Tips for Ducted Aircraft
US-2021394888-A1 · Dec 23, 2021 · US
Passive tip gap management systems for ducted aircraft
US-11203421-B1 · Dec 21, 2021 · US
Aircraft turbine engine with a pair of rotating and non-ducted propellers
US-11021230-B2 · Jun 1, 2021 · US
Aerial vehicle with different propeller blade configurations
US-10723440-B2 · Jul 28, 2020 · US
Six degree of freedom aerial vehicle having reconfigurable propellers
US-2020089227-A1 · Mar 19, 2020 · US
Telescoping propeller blades for aerial vehicles
US-10583914-B2 · Mar 10, 2020 · US
Aerial vehicle propulsion mechanism with coaxially aligned propellers
US-10526070-B2 · Jan 7, 2020 · US
Convertible propeller
US-10501177-B2 · Dec 10, 2019 · US
Aircraft turbine engine with a pair of rotating and non-ducted propellers
US-2019359315-A1 · Nov 28, 2019 · US
Aerial vehicle propulsion mechanism with coaxially aligned and independently rotatable propellers
US-10399666-B2 · Sep 3, 2019 · US
Convertible propeller
US-2018362155-A1 · Dec 20, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B64C11/003?
- CPC B64C11/003 is the Cooperative Patent Classification code for “Variable-diameter propellers; Mechanisms therefor.”
- How many patents are filed under CPC B64C11/003 (Variable-diameter propellers; Mechanisms therefor)?
- Our database includes 30 publications tagged with this CPC code.
- Is patent activity under CPC B64C11/003 growing?
- Publication counts under this code: 1 in 2023 vs 1 in 2024 (latest complete years).