Air shutter and radiating fan including the same
US-10871166-B2 · Dec 22, 2020 · US
and having shutters, e.g. automatically closed when not in use
and having shutters, e.g. automatically closed when not in use · 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 | F04D25/14 |
| Official title | and having shutters, e.g. automatically closed when not in use |
| Display label | and having shutters, e.g. automatically closed when not in use |
| Total patents | 138 |
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 | 6 |
| 2017 | 8 |
| 2018 | 13 |
| 2019 | 12 |
| 2020 | 16 |
| 2021 | 21 |
| 2022 | 11 |
| 2023 | 20 |
| 2024 | 11 |
| 2025 | 10 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Linear air flow distribution for a cooling system
US-10869407-B2 · Dec 15, 2020 · US
Window-shades mechanism with an anti-backflow function, related fan device and electronic apparatus
US-10852029-B2 · Dec 1, 2020 · US
Branched air supply device and refrigerator
US-2020355421-A1 · Nov 12, 2020 · US
Adjustable spring tension clip for external damper agricultural fans
US-10823182-B2 · Nov 3, 2020 · US
Adjustable cooling fan apparatus
US-2020271128-A1 · Aug 27, 2020 · US
Flexure back-flow stopper
US-10718354-B2 · Jul 21, 2020 · US
Air shutter and radiating fan including the same
US-2020191154-A1 · Jun 18, 2020 · US
Ventilation unit for electrical enclosure
US-2020187382-A1 · Jun 11, 2020 · US
Extraction hood
US-2020124318-A1 · Apr 23, 2020 · US
Window-shades mechanism with an anti-backflow function, related fan device and electronic apparatus
US-2020116385-A1 · Apr 16, 2020 · US
Ventilation fan
US-10598397-B2 · Mar 24, 2020 · US
Extraction hood
US-10551085-B2 · Feb 4, 2020 · US
Fan with shut-off valve and method of operating
US-2019390681-A1 · Dec 26, 2019 · US
System and apparatus for providing a directed air flow
US-2019309758-A1 · Oct 10, 2019 · US
Anti-reverse flow cooling fan assembly
US-2019301489-A1 · Oct 3, 2019 · US
Fan with shut-off valve and method of operating
US-10408218-B2 · Sep 10, 2019 · US
Air management system
US-2019257315-A1 · Aug 22, 2019 · US
Louver integrated design for fan module
US-2019234647-A1 · Aug 1, 2019 · US
Mechanically actuated safety compliant fan finger guard structures and methods
US-10309423-B2 · Jun 4, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04D25/14?
- CPC F04D25/14 is the Cooperative Patent Classification code for “and having shutters, e.g. automatically closed when not in use.”
- How many patents are filed under CPC F04D25/14 (and having shutters, e.g. automatically closed when not in use)?
- Our database includes 138 publications tagged with this CPC code.
- Is patent activity under CPC F04D25/14 growing?
- Publication counts under this code: 11 in 2024 vs 10 in 2025 (latest complete years).