Actuator system for a fly-by-wire aircraft
US-2019344885-A1 · Nov 14, 2019 · US
using electro-hydrostatic actuators [EHA's]
using electro-hydrostatic actuators [EHA's] · 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 | B64C13/504 |
| Official title | {using electro-hydrostatic actuators [EHA's]} |
| Display label | using electro-hydrostatic actuators [EHA's] |
| Total patents | 136 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 12 |
| 2016 | 7 |
| 2017 | 16 |
| 2018 | 16 |
| 2019 | 13 |
| 2020 | 16 |
| 2021 | 16 |
| 2022 | 12 |
| 2023 | 11 |
| 2024 | 8 |
| 2025 | 9 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Rotary piston actuator anti-rotation configurations
US-10458441-B2 · Oct 29, 2019 · US
Hybrid actuator
US-2019217945-A1 · Jul 18, 2019 · US
Hydraulic system and method for a flight control system of an aircraft
US-10343767-B2 · Jul 9, 2019 · US
Ground spoiler control architecture for aircraft
US-2019176966-A1 · Jun 13, 2019 · US
Hydraulic system and method for a flight control system of an aircraft
US-2019112031-A1 · Apr 18, 2019 · US
Low profile electro-hydrostatic actuator
US-2019063472-A1 · Feb 28, 2019 · US
Hydraulic system and method for an aircraft flight control system
US-10196131-B2 · Feb 5, 2019 · US
Electro hydrostatic actuator
US-2019017501-A1 · Jan 17, 2019 · US
Methods and apparatus for controlling aircraft flight control surfaces
US-2018362149-A1 · Dec 20, 2018 · US
Methods and apparatus for a distributed aircraft actuation system
US-2018362147-A1 · Dec 20, 2018 · US
Method for estimating an external force acting on an electrohydrostatic actuator
US-2018292278-A1 · Oct 11, 2018 · US
Electro hydrostatic actuators
US-10087962-B2 · Oct 2, 2018 · US
Autopilot autorelease systems and methods
US-10073453-B2 · Sep 11, 2018 · US
Distributed flight control system
US-2018239366-A1 · Aug 23, 2018 · US
Disc spring providing linear axial motion
US-2018222574-A1 · Aug 9, 2018 · US
Actuator system for aircraft control surface
US-10029782-B2 · Jul 24, 2018 · US
Tail rotor actuation system
US-10023304-B2 · Jul 17, 2018 · US
Aircraft with distributed hydraulic system
US-2018178902-A1 · Jun 28, 2018 · US
Integrated stability and control augmentation system
US-2018172178-A1 · Jun 21, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B64C13/504?
- CPC B64C13/504 is the Cooperative Patent Classification code for “using electro-hydrostatic actuators [EHA's].”
- How many patents are filed under CPC B64C13/504 (using electro-hydrostatic actuators [EHA's])?
- Our database includes 136 publications tagged with this CPC code.
- Is patent activity under CPC B64C13/504 growing?
- Publication counts under this code: 8 in 2024 vs 9 in 2025 (latest complete years).