Pitch change mechanism for a fan of a gas turbine engine
US-2026078680-A1 · Mar 19, 2026 · US
non-automatic
non-automatic · 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 | B64C11/42 |
| Official title | non-automatic |
| Display label | non-automatic |
| Total patents | 39 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 3 |
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 5 |
| 2020 | 8 |
| 2021 | 5 |
| 2022 | 3 |
| 2024 | 9 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Pitch change mechanism for a fan of a gas turbine engine
US-12497902-B2 · Dec 16, 2025 · US
Systems and methods for controlling propeller control unit fluid pressure
US-12466545-B2 · Nov 11, 2025 · US
Variable pitch fan of a gas turbine engine
US-12110903-B2 · Oct 8, 2024 · US
Pitch change mechanism for a fan of a gas turbine engine
US-2024271539-A1 · Aug 15, 2024 · US
Electrohydraulic pitch-control system with a valve pump in a rotating reference frame
US-2024253771-A1 · Aug 1, 2024 · US
Systems and methods for controlling propeller control unit fluid pressure
US-2024150010-A1 · May 9, 2024 · US
Variable pitch fan of a gas turbine engine
US-2024151240-A1 · May 9, 2024 · US
Gear pump, drive device and adjustable-pitch propeller
US-2024140612-A1 · May 2, 2024 · US
Pitch change mechanism for a fan of a gas turbine engine
US-11970956-B2 · Apr 30, 2024 · US
Propeller speed overshoot preventing logic
US-11964750-B2 · Apr 23, 2024 · US
Pitch change mechanism for a fan of a gas turbine engine
US-2024068373-A1 · Feb 29, 2024 · US
Propeller blade pitch angle feedback from actuator rotation
US-11479339-B2 · Oct 25, 2022 · US
Pitch control assembly
US-11407494-B2 · Aug 9, 2022 · US
Propeller control unit
US-11312476-B2 · Apr 26, 2022 · US
Transfer bearing collapsing device
US-11161598-B2 · Nov 2, 2021 · US
Fan module having variable-pitch blades for a turbine engine
US-11162506-B2 · Nov 2, 2021 · US
Method of controlling a propeller with two-position solenoid
US-11059567-B2 · Jul 13, 2021 · US
Propeller blade pitch angle feedback from actuator rotation
US-2021206474-A1 · Jul 8, 2021 · US
System and method for feathering an aircraft propeller
US-10899433-B2 · Jan 26, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B64C11/42?
- CPC B64C11/42 is the Cooperative Patent Classification code for “non-automatic.”
- How many patents are filed under CPC B64C11/42 (non-automatic)?
- Our database includes 39 publications tagged with this CPC code.
- Is patent activity under CPC B64C11/42 growing?
- Publication counts under this code: 9 in 2024 vs 2 in 2025 (latest complete years).