Inlet air filtration system with self-cleaning hydrophobic filter bag
US-10159924-B2 · Dec 25, 2018 · US
Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
Particle separators, e.g. dust precipitators, having hollow filters made of flexible material · 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 | B01D46/02 |
| Official title | Particle separators, e.g. dust precipitators, having hollow filters made of flexible material |
| Display label | Particle separators, e.g. dust precipitators, having hollow filters made of flexible material |
| Total patents | 266 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 20 |
| 2016 | 14 |
| 2017 | 22 |
| 2018 | 22 |
| 2019 | 29 |
| 2020 | 38 |
| 2021 | 17 |
| 2022 | 31 |
| 2023 | 21 |
| 2024 | 28 |
| 2025 | 20 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method and system for filter bag unit assembly and filter bag unit
US-2018296959-A1 · Oct 18, 2018 · US
Filter cloth for bag filter, method for producing the same, and bag filter
US-2018257015-A1 · Sep 13, 2018 · US
Mobile multi sack dust collection apparatus
US-9937454-B2 · Apr 10, 2018 · US
Compound air filters and methods thereof
US-2017368490-A1 · Dec 28, 2017 · US
Compound air filter
US-2017368488-A1 · Dec 28, 2017 · US
Filter cartridge; components thereof; and methods
US-2017348627-A1 · Dec 7, 2017 · US
Coalescing filter media
US-2017341006-A1 · Nov 30, 2017 · US
Filter element support assembly, quick installation system, and methods
US-9815013-B2 · Nov 14, 2017 · US
Fine fiber media layer
US-2017319993-A1 · Nov 9, 2017 · US
Circular air filter and air cleaner assembly for vehicle having the air filter
US-2017312677-A1 · Nov 2, 2017 · US
Vacuum cleaner and filter for a vacuum cleaner
US-2017296014-A1 · Oct 19, 2017 · US
Handheld vacuum cleaner
US-2017296007-A1 · Oct 19, 2017 · US
Vacuum filter
US-2017296013-A1 · Oct 19, 2017 · US
Device for limiting the consequences of a widespread fire in premises
US-9776026-B2 · Oct 3, 2017 · US
Filter cartridge; components thereof; and methods
US-9751036-B2 · Sep 5, 2017 · US
Fabric filter louver assembly
US-2017246575-A1 · Aug 31, 2017 · US
Bag filters having controlled air permeability and dust collectors using the same
US-2017216752-A1 · Aug 3, 2017 · US
Fine fiber media layer
US-9718012-B2 · Aug 1, 2017 · US
Systems and methods for controlling particulate release from large equipment
US-9669345-B2 · Jun 6, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D46/02?
- CPC B01D46/02 is the Cooperative Patent Classification code for “Particle separators, e.g. dust precipitators, having hollow filters made of flexible material.”
- How many patents are filed under CPC B01D46/02 (Particle separators, e.g. dust precipitators, having hollow filters made of flexible material)?
- Our database includes 266 publications tagged with this CPC code.
- Is patent activity under CPC B01D46/02 growing?
- Publication counts under this code: 28 in 2024 vs 20 in 2025 (latest complete years).