Removal of part of a particle collection device
US-12594520-B2 · Apr 7, 2026 · US
Including arrangements for environmental or personal protection
Including arrangements for environmental or personal protection · 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 | B01D46/0091 |
| Official title | {Including arrangements for environmental or personal protection} |
| Display label | Including arrangements for environmental or personal protection |
| Total patents | 39 |
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 | 3 |
| 2016 | 2 |
| 2017 | 3 |
| 2018 | 5 |
| 2019 | 1 |
| 2020 | 3 |
| 2021 | 7 |
| 2022 | 2 |
| 2023 | 5 |
| 2024 | 5 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Filter devices for additive manufacturing apparatuses
US-2025288935-A1 · Sep 18, 2025 · US
Heat resistant pad for soldering tool air filtration assembly
US-2025121312-A1 · Apr 17, 2025 · US
Filtering system, painting system, and method for operating a filtering system
US-2024390833-A1 · Nov 28, 2024 · US
Filtering system, painting system, and method for operating a filtering system
US-12076682-B2 · Sep 3, 2024 · US
Method and device for filtering contaminated air
US-11938438-B2 · Mar 26, 2024 · US
Storage case for a portable device
US-2024066335-A1 · Feb 29, 2024 · US
Removal of part of a particle collection device
US-2024058737-A1 · Feb 22, 2024 · US
Filter unit and air purifier having same
US-2023271125-A1 · Aug 31, 2023 · US
Filtering system, painting system, and method for operating a filtering system
US-2023264134-A1 · Aug 24, 2023 · US
Filter device
US-11731070-B2 · Aug 22, 2023 · US
Filtering system, painting system, and method for operating a filtering system
US-11666850-B2 · Jun 6, 2023 · US
Filter device and method for changing a filter element
US-11549704-B2 · Jan 10, 2023 · US
Systems and methods for filter and/or debris disposal for an extraction system filter
US-2022258086-A1 · Aug 18, 2022 · US
Filter assembly and system
US-2022241714-A1 · Aug 4, 2022 · US
Filtering system, painting system, and method for operating a filtering system
US-2021370211-A1 · Dec 2, 2021 · US
Method and device for filtering contaminated air
US-2021354068-A1 · Nov 18, 2021 · US
Pocket filter assembly
US-11148090-B2 · Oct 19, 2021 · US
Filter device
US-2021316244-A1 · Oct 14, 2021 · US
Filter device and method for changing a filter element
US-2021318007-A1 · Oct 14, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D46/0091?
- CPC B01D46/0091 is the Cooperative Patent Classification code for “Including arrangements for environmental or personal protection.”
- How many patents are filed under CPC B01D46/0091 (Including arrangements for environmental or personal protection)?
- Our database includes 39 publications tagged with this CPC code.
- Is patent activity under CPC B01D46/0091 growing?
- Publication counts under this code: 5 in 2024 vs 2 in 2025 (latest complete years).