Method of controlling a propeller with two-position solenoid
US-2020369370-A1 · Nov 26, 2020 · US
comprising feathering, braking or stopping systems
comprising feathering, braking or stopping systems · 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 | B64C11/385 |
| Official title | {comprising feathering, braking or stopping systems} |
| Display label | comprising feathering, braking or stopping systems |
| Total patents | 151 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 6 |
| 2017 | 7 |
| 2018 | 8 |
| 2019 | 16 |
| 2020 | 24 |
| 2021 | 22 |
| 2022 | 16 |
| 2023 | 7 |
| 2024 | 20 |
| 2025 | 17 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
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
Propeller blade angle control system
US-10793256-B2 · Oct 6, 2020 · US
Combined overspeed, feathering, and reverse enabler control valve for a propeller assembly
US-2020298959-A1 · Sep 24, 2020 · US
System and method for aircraft propeller governing
US-2020262542-A1 · Aug 20, 2020 · US
Aircraft turboprop engine propeller pitch control system including a controllable feather valve
US-2020255123-A1 · Aug 13, 2020 · US
System and method of locating feathering propeller blade angular position
US-2020247529-A1 · Aug 6, 2020 · US
Propeller oil control system for aircraft turboprop engines
US-2020198765-A1 · Jun 25, 2020 · US
System and method for operating a gas turbine engine coupled to an aircraft propeller
US-2020198794-A1 · Jun 25, 2020 · US
Device for locking the pitch and for feathering adjustable-pitch fan blades of a turbine engine propeller
US-10689094-B2 · Jun 23, 2020 · US
Propeller blade angle closed loop control by solenoid modulation
US-2020189721-A1 · Jun 18, 2020 · US
Aircraft comprising a turbine engine incorporated into the rear fuselage comprising a system for blocking the fans
US-10661910-B2 · May 26, 2020 · US
System and method for slowing down aircraft
US-2020115037-A1 · Apr 16, 2020 · US
Automated propeller feather testing
US-2020049027-A1 · Feb 13, 2020 · US
Variable pitch propeller control system
US-2020039635-A1 · Feb 6, 2020 · US
Rotor brake
US-2020018366-A1 · Jan 16, 2020 · US
System and method for feathering an aircraft propeller
US-2020017196-A1 · Jan 16, 2020 · US
System and method for feathering an aircraft propeller
US-2020017197-A1 · Jan 16, 2020 · US
Centerline-mounted hydraulic pitch change mechanism actuator
US-10533436-B2 · Jan 14, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B64C11/385?
- CPC B64C11/385 is the Cooperative Patent Classification code for “comprising feathering, braking or stopping systems.”
- How many patents are filed under CPC B64C11/385 (comprising feathering, braking or stopping systems)?
- Our database includes 151 publications tagged with this CPC code.
- Is patent activity under CPC B64C11/385 growing?
- Publication counts under this code: 20 in 2024 vs 17 in 2025 (latest complete years).