Systems and methods for flight control of evtol aircraft
US-2024400200-A1 · Dec 5, 2024 · US
within, or attached to, wings
within, or attached to, wings · 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 | B64D27/31 |
| Official title | within, or attached to, wings |
| Display label | within, or attached to, wings |
| Total patents | 1,027 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 9 |
| 2017 | 11 |
| 2018 | 35 |
| 2019 | 68 |
| 2020 | 79 |
| 2021 | 95 |
| 2022 | 151 |
| 2023 | 207 |
| 2024 | 186 |
| 2025 | 149 |
| 2026 | 34 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Uav with distributed propulsion and blown control surfaces
US-2024109657-A1 · Apr 4, 2024 · US
Propulsion system for an aircraft
US-2018372588-A1 · Dec 27, 2018 · US
Propulsion system for an aircraft
US-2018370646-A1 · Dec 27, 2018 · US
Hybrid electric propulsion system for an aircraft
US-2018370641-A1 · Dec 27, 2018 · US
Propulsion system for an aircraft
US-2018372003-A1 · Dec 27, 2018 · US
Hybrid power or thrust generator and vehicle including such a generator
US-2018363564-A1 · Dec 20, 2018 · US
Propulsion system for an aircraft
US-2018339780-A1 · Nov 29, 2018 · US
Electric propulsion system for an aircraft
US-10137981-B2 · Nov 27, 2018 · US
Propulsion system for an aircraft
US-2018334258-A1 · Nov 22, 2018 · US
Aircraft electrical network
US-10131441-B2 · Nov 20, 2018 · US
Propulsion System for an Aircraft
US-2018305036-A1 · Oct 25, 2018 · US
Method for managing imbalance in a distributed propulsion system
US-2018305033-A1 · Oct 25, 2018 · US
Electric Propulsion System for an Aircraft
US-2018281931-A1 · Oct 4, 2018 · US
Gas-Electric Propulsion System for an Aircraft
US-2018257787-A1 · Sep 13, 2018 · US
Hybrid propulsion drive train system for tiltrotor aircraft
US-2018251226-A1 · Sep 6, 2018 · US
Sealed float with batteries
US-10059436-B1 · Aug 28, 2018 · US
Propulsion System for an Aircraft
US-2018230844-A1 · Aug 16, 2018 · US
Propulsion system for an aircraft
US-2018230845-A1 · Aug 16, 2018 · US
Aircraft drive device and aircraft provided with a drive device
US-2018170565-A1 · Jun 21, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B64D27/31?
- CPC B64D27/31 is the Cooperative Patent Classification code for “within, or attached to, wings.”
- How many patents are filed under CPC B64D27/31 (within, or attached to, wings)?
- Our database includes 1,027 publications tagged with this CPC code.
- Is patent activity under CPC B64D27/31 growing?
- Publication counts under this code: 186 in 2024 vs 149 in 2025 (latest complete years).