Systems and methods for uav sensor placement
US-2018339768-A1 · Nov 29, 2018 · US
Ducted or shrouded rotors
Ducted or shrouded rotors · 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 | B64U30/26 |
| Official title | Ducted or shrouded rotors |
| Display label | Ducted or shrouded rotors |
| Total patents | 369 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 12 |
| 2017 | 32 |
| 2018 | 34 |
| 2019 | 45 |
| 2020 | 47 |
| 2021 | 46 |
| 2022 | 53 |
| 2023 | 39 |
| 2024 | 32 |
| 2025 | 22 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Aircraft
US-10131422-B2 · Nov 20, 2018 · US
Robust amphibious aircraft
US-2018257772-A1 · Sep 13, 2018 · US
Method for controlling unmanned aerial vehicle and unmanned aerial vehicle supporting the same
US-2018259953-A1 · Sep 13, 2018 · US
Unmanned aerial vehicle having duct structure
US-2018257775-A1 · Sep 13, 2018 · US
Thrust producing unit with at least two rotor assemblies and a shrouding
US-2018208295-A1 · Jul 26, 2018 · US
Unmanned aerial vehicles
US-2018194463-A1 · Jul 12, 2018 · US
Mechanisms for lowering a payload to the ground from a UAV
US-9957046-B2 · May 1, 2018 · US
Unmanned aerial vehicle
US-2018057164-A1 · Mar 1, 2018 · US
Personal transportation devices having a driving configuration and a flying configuration
US-2018029431-A1 · Feb 1, 2018 · US
Image pickup apparatus, image pickup method, and recording medium for imaging plural subjects or a single subject
US-2017374277-A1 · Dec 28, 2017 · US
Propeller
US-9849968-B2 · Dec 26, 2017 · US
Navigation System for Unmanned Aerial Vehicle
US-2017358222-A1 · Dec 14, 2017 · US
System and Method for Modular Unmanned Aerial System
US-2017349281-A1 · Dec 7, 2017 · US
Drone and method for controlling the same
US-2017339337-A1 · Nov 23, 2017 · US
Aerial vehicle propeller ducts with active airflow channels
US-9809304-B1 · Nov 7, 2017 · US
Unmanned vehicle
US-2017313418-A1 · Nov 2, 2017 · US
Helicopter
US-2017305548-A1 · Oct 26, 2017 · US
Aerial system propulsion assembly and method of use
US-2017305542-A1 · Oct 26, 2017 · US
Drone, method for controlling flight of the same, and non-transitory computer-readable recording medium storing program
US-2017300050-A1 · Oct 19, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B64U30/26?
- CPC B64U30/26 is the Cooperative Patent Classification code for “Ducted or shrouded rotors.”
- How many patents are filed under CPC B64U30/26 (Ducted or shrouded rotors)?
- Our database includes 369 publications tagged with this CPC code.
- Is patent activity under CPC B64U30/26 growing?
- Publication counts under this code: 32 in 2024 vs 22 in 2025 (latest complete years).