Regenerative high lift magnetic clutch and brake generator for electric aircraft
US-2025229893-A1 · Jul 17, 2025 · US
by flaps at both the front and rear of the wing operating in unison
by flaps at both the front and rear of the wing operating in unison · 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 | B64C9/28 |
| Official title | by flaps at both the front and rear of the wing operating in unison |
| Display label | by flaps at both the front and rear of the wing operating in unison |
| Total patents | 33 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 5 |
| 2017 | 6 |
| 2018 | 4 |
| 2020 | 1 |
| 2021 | 4 |
| 2022 | 3 |
| 2023 | 2 |
| 2024 | 4 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Aircraft wing section assembly
US-12286223-B2 · Apr 29, 2025 · US
Aircraft wing section assembly
US-2024228013-A9 · Jul 11, 2024 · US
Aircraft wing section assembly
US-2024132199-A1 · Apr 25, 2024 · US
Control surface actuation synchronization system
US-11952107-B2 · Apr 9, 2024 · US
Control surface actuation synchronization system
US-11939042-B2 · Mar 26, 2024 · US
Aircraft wing section assembly
US-11834171-B2 · Dec 5, 2023 · US
Rapid flap deflection for high lift transients
US-11613344-B2 · Mar 28, 2023 · US
Aircraft wing section assembly
US-2022250736-A1 · Aug 11, 2022 · US
Control surface actuation synchronization system
US-2022073192-A1 · Mar 10, 2022 · US
Control surface actuation synchronization system
US-2022073191-A1 · Mar 10, 2022 · US
Rapid Flap Deflection For High Lift Transients
US-2021179258-A1 · Jun 17, 2021 · US
Wing for an aircraft
US-11034433-B2 · Jun 15, 2021 · US
Rapid flap deflection for high lift transients
US-10974814-B1 · Apr 13, 2021 · US
Methods and apparatus to extend a leading-edge vortex of a highly-swept aircraft wing
US-10967957-B2 · Apr 6, 2021 · US
Rapid flap deflection for high lift transients
US-10745107-B1 · Aug 18, 2020 · US
Wing for an aircraft
US-2018312244-A1 · Nov 1, 2018 · US
Torque tube assemblies for use with aircraft high lift devices
US-10036426-B2 · Jul 31, 2018 · US
Methods and apparatus to extend a leading-edge vortex of a highly-swept aircraft wing
US-2018170526-A1 · Jun 21, 2018 · US
Torque tube assemblies for use with aircraft high lift devices
US-2018003243-A1 · Jan 4, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B64C9/28?
- CPC B64C9/28 is the Cooperative Patent Classification code for “by flaps at both the front and rear of the wing operating in unison.”
- How many patents are filed under CPC B64C9/28 (by flaps at both the front and rear of the wing operating in unison)?
- Our database includes 33 publications tagged with this CPC code.
- Is patent activity under CPC B64C9/28 growing?
- Publication counts under this code: 4 in 2024 vs 2 in 2025 (latest complete years).