Formed filter media
US-12569797-B2 · Mar 10, 2026 · US
Cell-type roll filters
Cell-type roll filters · 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 | B01D25/24 |
| Official title | Cell-type roll filters |
| Display label | Cell-type roll filters |
| Total patents | 42 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 1 |
| 2017 | 8 |
| 2018 | 4 |
| 2019 | 4 |
| 2020 | 2 |
| 2021 | 2 |
| 2022 | 5 |
| 2023 | 4 |
| 2024 | 2 |
| 2025 | 2 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Separation component for a filter element
US-12544704-B2 · Feb 10, 2026 · US
Filters principally for use in connection with swimming pools and spas
US-12458911-B2 · Nov 4, 2025 · US
Fluid filtration apparatuses, systems, and methods
US-12409397-B2 · Sep 9, 2025 · US
Air filter arrangement; assembly; and, methods
US-12109526-B2 · Oct 8, 2024 · US
Air filter arrangement; assembly; and, methods
US-2024091695-A1 · Mar 21, 2024 · US
Air filter arrangement; assembly; and, methods
US-11786857-B2 · Oct 17, 2023 · US
Monolithic assembly integrating open cell structure with retaining partition
US-11701601-B2 · Jul 18, 2023 · US
Filter arrangements; housings; assemblies; and, methods
US-11679352-B2 · Jun 20, 2023 · US
Formed filter media
US-2023018748-A1 · Jan 19, 2023 · US
Separation Component for a Filter Element
US-2022266188-A1 · Aug 25, 2022 · US
Air filter arrangement; assembly; and, methods
US-2022118394-A1 · Apr 21, 2022 · US
Filter assemblies utilizing full cross-section
US-2022118386-A1 · Apr 21, 2022 · US
Filter arrangements; housings; assemblies; and, methods
US-2022072465-A1 · Mar 10, 2022 · US
Monolithic assembly integrating open cell structure with retaining partition
US-2022008843-A1 · Jan 13, 2022 · US
Fluid filtration apparatuses, systems, and methods
US-2021354059-A1 · Nov 18, 2021 · US
Air filter arrangement; assembly; and, methods
US-11173442-B2 · Nov 16, 2021 · US
Z-filter media pack arrangement; and, methods
US-RE48050-E · Jun 16, 2020 · US
Air filter arrangement; assembly; and, methods
US-2020114296-A1 · Apr 16, 2020 · US
Filters principally for use in connection with swimming pools and spas
US-2019388807-A1 · Dec 26, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D25/24?
- CPC B01D25/24 is the Cooperative Patent Classification code for “Cell-type roll filters.”
- How many patents are filed under CPC B01D25/24 (Cell-type roll filters)?
- Our database includes 42 publications tagged with this CPC code.
- Is patent activity under CPC B01D25/24 growing?
- Publication counts under this code: 2 in 2024 vs 2 in 2025 (latest complete years).