Adjusting pitch for airfoils of an aircraft propulsion system
US-2026062117-A1 · Mar 5, 2026 · 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 | B64C11/308 |
| Official title | {automatic} |
| Display label | automatic |
| Total patents | 34 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 4 |
| 2017 | 8 |
| 2018 | 4 |
| 2019 | 3 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 3 |
| 2023 | 1 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Disengagement for reverse propeller protection
US-2025187719-A1 · Jun 12, 2025 · US
System for controlling the cyclic setting of blades
US-11772778-B2 · Oct 3, 2023 · US
System for controlling the cyclic setting of blades
US-2022371721-A1 · Nov 24, 2022 · US
Test rig and method for blade pitch measurement system
US-2022185451-A1 · Jun 16, 2022 · US
Radial shaft device for controlling the pitch of fan blades of a turbine engine having an un-ducted fan
US-11225317-B2 · Jan 18, 2022 · US
Aircraft turbine engine with a pair of rotating and non-ducted propellers
US-11021230-B2 · Jun 1, 2021 · US
Lubrication device for a turbine engine
US-10677095-B2 · Jun 9, 2020 · US
Aircraft turbine engine with a pair of rotating and non-ducted propellers
US-2019359315-A1 · Nov 28, 2019 · US
Lever arm device for controlling the pitch of fan blades of a turbine engine having an unducted fan
US-10443609-B2 · Oct 15, 2019 · US
Counter-rotating propeller system with capability to stop rotation of one row
US-2019283864-A1 · Sep 19, 2019 · US
Tilt-rotor over-torque protection from asymmetric gust
US-10131427-B2 · Nov 20, 2018 · US
System for changing the pitch of the contra-rotating propellers of a turboshaft engine
US-10119409-B2 · Nov 6, 2018 · US
Turbine engine having a pair of propellers for an aircraft
US-9926070-B2 · Mar 27, 2018 · US
A radial shaft device for controlling the pitch of fan blades of a turbine engine having an un-ducted fan
US-2018065730-A1 · Mar 8, 2018 · US
Lever arm device for controlling the pitch of fan blades of a turbine engine having an unducted fan
US-2017343008-A1 · Nov 30, 2017 · US
Oil transfer system on rotating shaft
US-9726039-B2 · Aug 8, 2017 · US
Lubrication device for a turbine engine
US-2017198605-A1 · Jul 13, 2017 · US
Hydraulic system for controlling the orientation of fan blades
US-9663218-B2 · May 30, 2017 · US
Tilt-rotor over-torque protection from asymmetric gust
US-2017121029-A1 · May 4, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B64C11/308?
- CPC B64C11/308 is the Cooperative Patent Classification code for “automatic.”
- How many patents are filed under CPC B64C11/308 (automatic)?
- Our database includes 34 publications tagged with this CPC code.
- Is patent activity under CPC B64C11/308 growing?
- Publication counts under this code: 1 in 2023 vs 1 in 2025 (latest complete years).