Flight device
US-2024343423-A1 · Oct 17, 2024 · US
using internal combustion piston engines
using internal combustion piston engines · 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 | B64U50/11 |
| Official title | using internal combustion piston engines |
| Display label | using internal combustion piston engines |
| Total patents | 279 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 12 |
| 2017 | 21 |
| 2018 | 35 |
| 2019 | 30 |
| 2020 | 41 |
| 2021 | 27 |
| 2022 | 23 |
| 2023 | 32 |
| 2024 | 21 |
| 2025 | 33 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Alert system for an unmanned aerial vehicle
US-2018281951-A1 · Oct 4, 2018 · US
Tri-rotor aircraft capable of vertical takeoff and landing and transitioning to forward flight
US-10071801-B2 · Sep 11, 2018 · US
Distributed propulsion system for vertical take off and landing closed wing aircraft
US-2018244376-A1 · Aug 30, 2018 · US
Modular fuselage sections for vertical take off and landing distributed airframe aircraft
US-2018244364-A1 · Aug 30, 2018 · US
Aerial drone for correcting erratic driving of a vehicle
US-2018233038-A1 · Aug 16, 2018 · US
Alert system for an unmanned aerial vehicle
US-10040552-B2 · Aug 7, 2018 · US
Distributed propulsion system
US-2018215462-A1 · Aug 2, 2018 · US
Unmanned aerial vehicle sensor calibration during flight
US-10032275-B1 · Jul 24, 2018 · US
Forward folding rotor blades
US-2018186445-A1 · Jul 5, 2018 · US
Unmanned aerial vehicle camera calibration as part of departure or arrival at a materials handling facility
US-9972212-B1 · May 15, 2018 · US
Aircraft with selectively attachable passenger pod assembly
US-9963228-B2 · May 8, 2018 · US
Un-manned aerial vehicle having adjustable wing module, tail, and landing gear
US-9957035-B2 · May 1, 2018 · US
Method of detecting abnormality in unmanned aircraft control system and abnormality detector
US-2018074155-A1 · Mar 15, 2018 · US
Tiltrotor propulsion system for an aircraft
US-2018065741-A1 · Mar 8, 2018 · US
Aerial drone for deploying a warning sign
US-2018061235-A1 · Mar 1, 2018 · US
Surrogate vehicle sensors
US-2018061148-A1 · Mar 1, 2018 · US
VTOL aerodyne with supporting axial blower(s)
US-9902493-B2 · Feb 27, 2018 · US
Vertical takeoff and landing vehicle with increased cruise efficiency
US-9896200-B2 · Feb 20, 2018 · US
Mobile audio input device controller
US-2018046189-A1 · Feb 15, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B64U50/11?
- CPC B64U50/11 is the Cooperative Patent Classification code for “using internal combustion piston engines.”
- How many patents are filed under CPC B64U50/11 (using internal combustion piston engines)?
- Our database includes 279 publications tagged with this CPC code.
- Is patent activity under CPC B64U50/11 growing?
- Publication counts under this code: 21 in 2024 vs 33 in 2025 (latest complete years).