Propeller blade angle control system
US-10501169-B2 · Dec 10, 2019 · US
during rotation
during rotation · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F04D29/362 |
| Official title | {during rotation} |
| Display label | during rotation |
| Total patents | 195 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 12 |
| 2017 | 17 |
| 2018 | 15 |
| 2019 | 22 |
| 2020 | 15 |
| 2021 | 19 |
| 2022 | 23 |
| 2023 | 23 |
| 2024 | 19 |
| 2025 | 15 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Variable pitch fan for a gas turbine engine
US-10473111-B2 · Nov 12, 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
Gas turbine engine fan
US-10371096-B2 · Aug 6, 2019 · US
Pitch change mechanism for a bladed rotor
US-10364020-B2 · Jul 30, 2019 · US
Rotorcraft variable thrust cross-flow fan systems
US-10279900-B2 · May 7, 2019 · US
Fan cowl with a serrated trailing edge providing attached flow in reverse thrust mode
US-2019128214-A1 · May 2, 2019 · US
Hub for propeller having variable-pitch blades, with radial and axial dimensioning variation
US-2019048888-A1 · Feb 14, 2019 · US
Variable pitch change control method
US-2018363481-A1 · Dec 20, 2018 · US
Fan module with variable pitch blades
US-2018335046-A1 · Nov 22, 2018 · US
Fan module with variable pitch blades
US-2018335047-A1 · Nov 22, 2018 · US
Turbomachine module comprising a rotor supporting pitchable blades
US-2018334915-A1 · Nov 22, 2018 · US
System for changing the pitch of the contra-rotating propellers of a turboshaft engine
US-10119409-B2 · Nov 6, 2018 · US
Method for reducing the noise level of a turbomachine fan
US-10054133-B2 · Aug 21, 2018 · US
Variable pitch for coordinated control
US-2018155040-A1 · Jun 7, 2018 · US
Propulsion assembly comprising a duct for feeding the gas generator in an inter-duct casing
US-2018135557-A1 · May 17, 2018 · US
Unison ring assembly
US-9970313-B2 · May 15, 2018 · US
Method and apparatus for controlling a turboprop engine
US-9932120-B2 · Apr 3, 2018 · US
Fan blade positioning and support system for variable pitch, spherical tip fan blade engines
US-9926795-B2 · Mar 27, 2018 · US
Adaptable articulating axial-flow compressor/turbine rotor blade
US-2018066671-A1 · Mar 8, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04D29/362?
- CPC F04D29/362 is the Cooperative Patent Classification code for “during rotation.”
- How many patents are filed under CPC F04D29/362 (during rotation)?
- Our database includes 195 publications tagged with this CPC code.
- Is patent activity under CPC F04D29/362 growing?
- Publication counts under this code: 19 in 2024 vs 15 in 2025 (latest complete years).