Ceiling fan motor housing with magnet seat
US-2021222705-A1 · Jul 22, 2021 · US
adjustable {(flexible blades F04D29/382)}
adjustable {(flexible blades F04D29/382)} · 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 | F04D29/36 |
| Official title | adjustable {(flexible blades F04D29/382)} |
| Display label | adjustable {(flexible blades F04D29/382)} |
| Total patents | 134 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 7 |
| 2017 | 13 |
| 2018 | 8 |
| 2019 | 13 |
| 2020 | 13 |
| 2021 | 16 |
| 2022 | 23 |
| 2023 | 17 |
| 2024 | 11 |
| 2025 | 4 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Air shutter and radiating fan including the same
US-10871166-B2 · Dec 22, 2020 · US
Additively manufactured hinge assembly
US-10787846-B2 · Sep 29, 2020 · US
Fan blade pitch setting
US-10767500-B2 · Sep 8, 2020 · US
Propeller-shaped impeller and railway carriage air-conditioning apparatus
US-2020269885-A1 · Aug 27, 2020 · US
Ceiling fan
US-2020248714-A1 · Aug 6, 2020 · US
Air shutter and radiating fan including the same
US-2020191154-A1 · Jun 18, 2020 · US
Fan with pivotable blades, and corresponding electronics cooling system and methods
US-10660235-B2 · May 19, 2020 · US
Ceiling fan
US-10648485-B2 · May 12, 2020 · US
Method and System for Integrated Pitch Control Mechanism Actuator Hydraulic Fluid Transfer
US-2020141421-A1 · May 7, 2020 · US
Fan with Pivotable Blades, and Corresponding Electronics Cooling System and Methods
US-2020128694-A1 · Apr 23, 2020 · US
Aircraft gas turbine engine blade pitch change mechanism
US-2020116035-A1 · Apr 16, 2020 · US
Two-stage blade adjusting device for counter-rotating axial flow fan
US-10612559-B2 · Apr 7, 2020 · US
Additively Manufactured Hinge Assembly
US-2020040627-A1 · Feb 6, 2020 · US
Blade Adapter and Ceiling Fan Including the Same
US-2019390684-A1 · Dec 26, 2019 · US
Variable pitch fan blade system
US-10465701-B2 · Nov 5, 2019 · US
Devices, systems, and methods for controlling a ceiling fan
US-2019264700-A1 · Aug 29, 2019 · US
Method and system for integrated pitch control mechanism actuator hydraulic fluid transfer
US-10393137-B2 · Aug 27, 2019 · US
Ceiling fan
US-D856503-S · Aug 13, 2019 · US
Composite Fan Blades with Integral Attachment Mechanism
US-2019211841-A1 · Jul 11, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04D29/36?
- CPC F04D29/36 is the Cooperative Patent Classification code for “adjustable {(flexible blades F04D29/382)}.”
- How many patents are filed under CPC F04D29/36 (adjustable {(flexible blades F04D29/382)})?
- Our database includes 134 publications tagged with this CPC code.
- Is patent activity under CPC F04D29/36 growing?
- Publication counts under this code: 11 in 2024 vs 4 in 2025 (latest complete years).