Air inlet barrier filter for a helicopter
US-12365473-B1 · Jul 22, 2025 · US
Filters which are moved between two or more positions, e.g. by turning, pushing
Filters which are moved between two or more positions, e.g. by turning, pushing · 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 | B01D2273/14 |
| Official title | Filters which are moved between two or more positions, e.g. by turning, pushing |
| Display label | Filters which are moved between two or more positions, e.g. by turning, pushing |
| Total patents | 48 |
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 | 2 |
| 2017 | 4 |
| 2018 | 7 |
| 2019 | 1 |
| 2020 | 6 |
| 2021 | 4 |
| 2022 | 7 |
| 2023 | 5 |
| 2024 | 8 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Removable flue gas strainer and associated methods
US-12311305-B2 · May 27, 2025 · US
Foldable filter arrangement consisting of a plurality of individual filter elements
US-12083467-B2 · Sep 10, 2024 · US
Compressor system and filter housing
US-2024286070-A1 · Aug 29, 2024 · US
Removable flue gas strainer and associated methods
US-2024189753-A1 · Jun 13, 2024 · US
Compressor system and filter housing
US-11992799-B2 · May 28, 2024 · US
Filter holder, filter assembly, and air purifier comprising same
US-2024123386-A1 · Apr 18, 2024 · US
Air filter housing for an air filter arrangement in a vehicle
US-11896923-B2 · Feb 13, 2024 · US
Indoor unit for air-conditioning apparatus
US-11892177-B2 · Feb 6, 2024 · US
Switchable filtration system
US-11865487-B2 · Jan 9, 2024 · US
Air intake filter assemblies with actuatable filter slats for heating, ventilation, and/or air conditioning (HVAC) systems
US-11759742-B2 · Sep 19, 2023 · US
Filter unit and air purifier having same
US-2023271125-A1 · Aug 31, 2023 · US
Ambient air purifying device and use of a filter element in an ambient air purifying device
US-11701610-B2 · Jul 18, 2023 · US
Dynamic air filtration
US-2023141272-A1 · May 11, 2023 · US
Compressor system and filter housing
US-2023092859-A1 · Mar 23, 2023 · US
Systems and methods for cleaning particulate filters
US-11517846-B2 · Dec 6, 2022 · US
Compressor system and filter housing
US-11504666-B2 · Nov 22, 2022 · US
Filter device and fixing means comprising a filter device of this type
US-11471809-B2 · Oct 18, 2022 · US
Switchable filtration system
US-2022203287-A1 · Jun 30, 2022 · US
Foldable filter arrangement consisting of a plurality of individual filter elements
US-2022176296-A1 · Jun 9, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D2273/14?
- CPC B01D2273/14 is the Cooperative Patent Classification code for “Filters which are moved between two or more positions, e.g. by turning, pushing.”
- How many patents are filed under CPC B01D2273/14 (Filters which are moved between two or more positions, e.g. by turning, pushing)?
- Our database includes 48 publications tagged with this CPC code.
- Is patent activity under CPC B01D2273/14 growing?
- Publication counts under this code: 8 in 2024 vs 2 in 2025 (latest complete years).