Method to decrease acoustic signature of a hybrid electric propulsion system
US-2024425190-A1 · Dec 26, 2024 · US
Phase synchronisation between multiple propellers
Phase synchronisation between multiple propellers · 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 | B64C11/50 |
| Official title | Phase synchronisation between multiple propellers |
| Display label | Phase synchronisation between multiple propellers |
| Total patents | 70 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 1 |
| 2017 | 6 |
| 2018 | 11 |
| 2019 | 8 |
| 2020 | 18 |
| 2021 | 1 |
| 2022 | 4 |
| 2023 | 3 |
| 2024 | 6 |
| 2025 | 9 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
System and method for efficiently determining a phase shift in a propulsion system
US-2024418131-A1 · Dec 19, 2024 · US
System and method for synchrophasing a propulsion system using electric machines
US-2024418132-A1 · Dec 19, 2024 · US
Apparatus for controlling multi-rotor vehicle vibrations and related methods
US-12134461-B2 · Nov 5, 2024 · US
Methods and systems for synchrophasing using asynchronous buses
US-2024305499-A1 · Sep 12, 2024 · US
Flight vehicle for which rotational position of rotary blade is controlled, motor control apparatus, method, and non-transitory computer-readable storage medium that stores program
US-2024239482-A1 · Jul 18, 2024 · US
Systems and methods for propulsor synchronization
US-2023382546-A1 · Nov 30, 2023 · US
Method of reducing noise of aircraft having hybrid power plants
US-2023303261-A1 · Sep 28, 2023 · US
Low-noise multi-propeller system
US-11565790-B2 · Jan 31, 2023 · US
Aircraft rotor assembly with plural rotors
US-2022194557-A1 · Jun 23, 2022 · US
Apparatus and methods for aircraft propeller control
US-2022177155-A1 · Jun 9, 2022 · US
Adaptive phase control architecture for reduction of community noise from distributed propulsion vehicles
US-11312478-B2 · Apr 26, 2022 · US
Apparatus and methods for aircraft propeller control
US-11292607-B2 · Apr 5, 2022 · US
System and method for aircraft noise mitigation
US-2021078715-A1 · Mar 18, 2021 · US
System and method for aircraft noise mitigation
US-10843807-B2 · Nov 24, 2020 · US
Dynamic rotor-phasing unit
US-10814960-B1 · Oct 27, 2020 · US
Phonic wheel with output voltage tuning
US-10801360-B2 · Oct 13, 2020 · US
Single lever powerplant control on twin turbopropeller aircraft
US-10800514-B2 · Oct 13, 2020 · US
Dynamic rotor-phasing unit
US-10773794-B2 · Sep 15, 2020 · US
System and method for aircraft noise mitigation
US-2020269990-A1 · Aug 27, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B64C11/50?
- CPC B64C11/50 is the Cooperative Patent Classification code for “Phase synchronisation between multiple propellers.”
- How many patents are filed under CPC B64C11/50 (Phase synchronisation between multiple propellers)?
- Our database includes 70 publications tagged with this CPC code.
- Is patent activity under CPC B64C11/50 growing?
- Publication counts under this code: 6 in 2024 vs 9 in 2025 (latest complete years).