System and method for controlling rotorcraft
US-11186357-B2 · Nov 30, 2021 · US
electric
electric · 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 | B64C11/44 |
| Official title | electric |
| Display label | electric |
| Total patents | 157 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 5 |
| 2017 | 9 |
| 2018 | 8 |
| 2019 | 10 |
| 2020 | 21 |
| 2021 | 19 |
| 2022 | 21 |
| 2023 | 17 |
| 2024 | 18 |
| 2025 | 21 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electric drive system line replaceable unit with integrated collective actuation
US-2021276706-A1 · Sep 9, 2021 · US
Propeller oil control system for aircraft turboprop engines
US-11066150-B2 · Jul 20, 2021 · US
Pitch actuation system for a turbomachine propeller
US-10870481-B2 · Dec 22, 2020 · US
Low latency pitch adjustable rotors
US-2020331585-A1 · Oct 22, 2020 · US
Aircraft turboprop engine propeller pitch control system including a controllable feather valve
US-10807701-B2 · Oct 20, 2020 · US
Method and system for feathering a propeller
US-2020324877-A1 · Oct 15, 2020 · US
Method and system for operating an aircraft powerplant
US-2020307774-A1 · Oct 1, 2020 · US
Simplified pitch actuation system for a turbomachine propeller
US-10780976-B2 · Sep 22, 2020 · US
Propeller Speed Overshoot Preventing Logic
US-2020283124-A1 · Sep 10, 2020 · US
System for electromechanical pitch actuation for a turbine engine propeller
US-10766604-B2 · Sep 8, 2020 · US
Thruster controller and attitude controller
US-2020278697-A1 · Sep 3, 2020 · US
Summing and fault tolerant rotary actuator assembly
US-10753444-B2 · Aug 25, 2020 · US
Aircraft turboprop engine propeller pitch control system including a controllable feather valve
US-2020255123-A1 · Aug 13, 2020 · US
Apparatus and methods for powering an electrical device associated with an aircraft rotor
US-10717543-B2 · Jul 21, 2020 · US
System and Method for Controlling Rotorcraft
US-2020216165-A1 · Jul 9, 2020 · US
Propeller oil control system for aircraft turboprop engines
US-2020198765-A1 · Jun 25, 2020 · US
Variable pitch propeller mechanisms using shape memory materials
US-10689093-B1 · Jun 23, 2020 · US
Propeller system
US-2020189720-A1 · Jun 18, 2020 · US
Propeller blade angle closed loop control by solenoid modulation
US-2020189721-A1 · Jun 18, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B64C11/44?
- CPC B64C11/44 is the Cooperative Patent Classification code for “electric.”
- How many patents are filed under CPC B64C11/44 (electric)?
- Our database includes 157 publications tagged with this CPC code.
- Is patent activity under CPC B64C11/44 growing?
- Publication counts under this code: 18 in 2024 vs 21 in 2025 (latest complete years).