Pitch-change mechanism with pitch-locking device comprising a satellite roller screw
US-2025382888-A1 · Dec 18, 2025 · US
automatic
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 | B64C11/34 |
| Official title | automatic |
| Display label | automatic |
| Total patents | 64 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 3 |
| 2017 | 4 |
| 2018 | 9 |
| 2019 | 6 |
| 2020 | 13 |
| 2021 | 9 |
| 2022 | 3 |
| 2023 | 4 |
| 2024 | 3 |
| 2025 | 4 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
System for controlling a propulsor assembly of an electric aircraft
US-12384551-B2 · Aug 12, 2025 · US
Disengagement for reverse propeller protection
US-2025187719-A1 · Jun 12, 2025 · US
Automated Variable Pitch Propeller Blade
US-2025091710-A1 · Mar 20, 2025 · US
System for controlling a propulsor assembly of an electric aircraft
US-2024327013-A1 · Oct 3, 2024 · US
Automated variable pitch propeller blade
US-12103661-B2 · Oct 1, 2024 · US
Method and system of operating an airplane engine
US-12006883-B2 · Jun 11, 2024 · US
Propeller blade angle feedback arrangement and method
US-11780561-B2 · Oct 10, 2023 · US
System and method for combined propeller speed and propeller pitch control for a turbopropeller engine
US-11780600-B2 · Oct 10, 2023 · US
Actuated blade-pitch change mechanisms
US-11702189-B1 · Jul 18, 2023 · US
Method of providing torque protection and/or thrust protection for propellers of a hybrid helicopter, and a hybrid helicopter
US-11608165-B2 · Mar 21, 2023 · US
Automated Variable Pitch Propeller Blade
US-2022274686-A1 · Sep 1, 2022 · US
Automated variable pitch propeller blade
US-11352125-B2 · Jun 7, 2022 · US
Automatic, active blade tracking and balance system
US-11299263-B2 · Apr 12, 2022 · US
Continuous variable pitch rotor system
US-2021380221-A1 · Dec 9, 2021 · US
System and method for operating a gas turbine engine coupled to an aircraft propeller
US-11136134-B2 · Oct 5, 2021 · US
Method of providing torque protection and/or thrust protection for propellers of a hybrid helicopter, and a hybrid helicopter
US-2021291975-A1 · Sep 23, 2021 · US
Propeller blade angle feedback arrangement and method
US-2021284322-A1 · Sep 16, 2021 · US
Propeller arrangement for an aircraft
US-11104415-B2 · Aug 31, 2021 · US
Propeller blade angle feedback arrangement and method
US-11046422-B2 · Jun 29, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B64C11/34?
- CPC B64C11/34 is the Cooperative Patent Classification code for “automatic.”
- How many patents are filed under CPC B64C11/34 (automatic)?
- Our database includes 64 publications tagged with this CPC code.
- Is patent activity under CPC B64C11/34 growing?
- Publication counts under this code: 3 in 2024 vs 4 in 2025 (latest complete years).