Mixed-matrix membranes with asymmetric filler density
US-2026054228-A1 · Feb 26, 2026 · US
Finger pores
Finger pores · 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 | B01D2325/025 |
| Official title | Finger pores |
| Display label | Finger pores |
| Total patents | 45 |
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 | 1 |
| 2016 | 2 |
| 2017 | 4 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 4 |
| 2021 | 6 |
| 2022 | 5 |
| 2023 | 4 |
| 2024 | 12 |
| 2025 | 2 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Phthalocyanine-based composite membranes for oil-water separation
US-2026001044-A1 · Jan 1, 2026 · US
Combination of pyrrolidone based solvents for the production of porous membranes
US-12226738-B2 · Feb 18, 2025 · US
Porous Polybenzimidazole Membrane Supports for Composite Membranes
US-2025033002-A1 · Jan 30, 2025 · US
Porous hollow fiber membrane
US-12172135-B2 · Dec 24, 2024 · US
Porous polybenzimidazole membrane supports for composite membranes
US-12138599-B2 · Nov 12, 2024 · US
Porous materials, methods and uses thereof
US-2024342663-A1 · Oct 17, 2024 · US
Forward Osmosis Membrane and Forward Osmosis Membrane Module Including Same
US-2024269618-A1 · Aug 15, 2024 · US
Membrane for blood purification
US-12059658-B2 · Aug 13, 2024 · US
High Performance Double Layer Ion Selective Membrane With Nanoporous Boron Nitride And Polyetherimide
US-2024173678-A1 · May 30, 2024 · US
Photothermal photocatalytic membrane for seawater desalination and uranium extraction and preparation method therefor
US-11951445-B2 · Apr 9, 2024 · US
Strong Hollow-Fiber Membranes for Saline Desalination and Water Treatment
US-2024091714-A1 · Mar 21, 2024 · US
Membrane for blood purification
US-2024050907-A1 · Feb 15, 2024 · US
Porous polymeric membrane and related filters and methods
US-11883786-B2 · Jan 30, 2024 · US
Fluorine-based resin porous membrane and method for preparing the same
US-11872531-B2 · Jan 16, 2024 · US
Hollow fiber membrane and method for producing same
US-2024001303-A1 · Jan 4, 2024 · US
Photothermal Photocatalytic Membrane for Seawater Desalination And Uranium Extraction And Preparation Method Therefor
US-2023381719-A1 · Nov 30, 2023 · US
Method of gas separation using metal-organic framework membrane
US-11731077-B2 · Aug 22, 2023 · US
Membrane for blood purification
US-11666868-B2 · Jun 6, 2023 · US
Porous Polybenzimidazole Membrane Supports for Composite Membranes
US-2023024915-A1 · Jan 26, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D2325/025?
- CPC B01D2325/025 is the Cooperative Patent Classification code for “Finger pores.”
- How many patents are filed under CPC B01D2325/025 (Finger pores)?
- Our database includes 45 publications tagged with this CPC code.
- Is patent activity under CPC B01D2325/025 growing?
- Publication counts under this code: 12 in 2024 vs 2 in 2025 (latest complete years).