Free propeller assembly structure and aircraft structure having the same
US-12077285-B2 · Sep 3, 2024 · US
with single rotor
with single rotor · 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 | B64C27/06 |
| Official title | with single rotor |
| Display label | with single rotor |
| Total patents | 436 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 12 |
| 2016 | 14 |
| 2017 | 38 |
| 2018 | 49 |
| 2019 | 45 |
| 2020 | 78 |
| 2021 | 49 |
| 2022 | 54 |
| 2023 | 44 |
| 2024 | 31 |
| 2025 | 20 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Unmanned aerial vehicles landing zones at cell sites
US-2017366980-A1 · Dec 21, 2017 · US
Aircraft load and vibration attenuation
US-2017334552-A1 · Nov 23, 2017 · US
Aircraft rotor blade with reduced stress
US-2017334554-A1 · Nov 23, 2017 · US
Device and method for controlling an auxiliary engine suitable for supplying thrust power to the rotor of a helicopter
US-2017334569-A1 · Nov 23, 2017 · US
Centralized processing for aircraft operations
US-2017337081-A1 · Nov 23, 2017 · US
Hydraulic actuator force fight mitigation mechanism
US-2017307090-A1 · Oct 26, 2017 · US
Gearbox Lubrication System
US-2017284535-A1 · Oct 5, 2017 · US
Coordinated planning with graph sharing over networks
US-2017263130-A1 · Sep 14, 2017 · US
Adjustment features for engine cowl door
US-2017253341-A1 · Sep 7, 2017 · US
Gearbox with Passive Lubrication System
US-2017241539-A1 · Aug 24, 2017 · US
Invertible aircraft
US-2017240289-A1 · Aug 24, 2017 · US
Viscous damper
US-2017241508-A1 · Aug 24, 2017 · US
Position sensor system for a landing gear assembly and method of monitoring
US-2017233096-A1 · Aug 17, 2017 · US
Vector limiting of a rotor control volume
US-2017220047-A1 · Aug 3, 2017 · US
Fire extinguishing agent discharge apparatus
US-2017216638-A1 · Aug 3, 2017 · US
Initial rotor state compensation for a rotorcraft
US-2017210466-A1 · Jul 27, 2017 · US
Pneumatic device for rapidly reactivating a turbine engine, architecture for a propulsion system of a multi-engine helicopter provided with such a device, and corresponding helicopter
US-2017211483-A1 · Jul 27, 2017 · US
Drive shaft system hanger bearing
US-2017203837-A1 · Jul 20, 2017 · US
Compound rotorcraft
US-2017197709-A1 · Jul 13, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B64C27/06?
- CPC B64C27/06 is the Cooperative Patent Classification code for “with single rotor.”
- How many patents are filed under CPC B64C27/06 (with single rotor)?
- Our database includes 436 publications tagged with this CPC code.
- Is patent activity under CPC B64C27/06 growing?
- Publication counts under this code: 31 in 2024 vs 20 in 2025 (latest complete years).