Methods for maintaining difficult-to-access structures using unmanned aerial vehicles
US-11662728-B2 · May 30, 2023 · US
having articulated joints
having articulated joints · 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 | B64C27/37 |
| Official title | having articulated joints |
| Display label | having articulated joints |
| Total patents | 74 |
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 | 4 |
| 2016 | 7 |
| 2017 | 2 |
| 2018 | 10 |
| 2019 | 5 |
| 2020 | 13 |
| 2021 | 10 |
| 2022 | 7 |
| 2023 | 8 |
| 2024 | 4 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Stowable Lift Rotors for VTOL Aircraft
US-2023056974-A1 · Feb 23, 2023 · US
Single motor single actuator rotorcraft
US-11524766-B2 · Dec 13, 2022 · US
Unmanned aerial vehicle
US-11492112-B2 · Nov 8, 2022 · US
Rotor hub fairing with integral cooling capabilities
US-11401040-B2 · Aug 2, 2022 · US
Propeller assemblies, aircraft including the same, and associated methods
US-11401031-B2 · Aug 2, 2022 · US
Thrusters for Multi-Copter Yaw Control and Forward Flight
US-2022194573-A1 · Jun 23, 2022 · US
Droop ring with removable wear elements
US-11235870-B2 · Feb 1, 2022 · US
Dual flex-beam assembly for folding rotor blade
US-11225324-B2 · Jan 18, 2022 · US
Rotor system with reconfigurable duct
US-2021403149-A1 · Dec 30, 2021 · US
Single motor single actuator rotorcraft
US-2021371085-A1 · Dec 2, 2021 · US
Flexured standpipes for aircraft propulsion assemblies
US-11161606-B2 · Nov 2, 2021 · US
Methods for Maintaining Difficult-to-Access Structures Using Unmanned Aerial Vehicles
US-2021325885-A1 · Oct 21, 2021 · US
Rotor hub fairing with integral cooling capabilities
US-2021291989-A1 · Sep 23, 2021 · US
Propeller assemblies, aircraft including the same, and associated methods
US-2021253231-A1 · Aug 19, 2021 · US
Lead-lag dampers and assemblies for an articulated rotor and methods for operation
US-11091255-B2 · Aug 17, 2021 · US
Methods for maintaining difficult-to-access structures using unmanned aerial vehicles
US-11079760-B2 · Aug 3, 2021 · US
Flexured Standpipes for Aircraft Propulsion Assemblies
US-2021214076-A1 · Jul 15, 2021 · US
Low-drag fairing and rotor assembly
US-11053001-B2 · Jul 6, 2021 · US
Rotor blade control system
US-2020407056-A1 · Dec 31, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B64C27/37?
- CPC B64C27/37 is the Cooperative Patent Classification code for “having articulated joints.”
- How many patents are filed under CPC B64C27/37 (having articulated joints)?
- Our database includes 74 publications tagged with this CPC code.
- Is patent activity under CPC B64C27/37 growing?
- Publication counts under this code: 4 in 2024 vs 3 in 2025 (latest complete years).