Reverse osmosis membrane and method of producing the same
US-2024307831-A1 · Sep 19, 2024 · US
Characteristic thickness
Characteristic thickness · 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 | B01D2325/04 |
| Official title | Characteristic thickness |
| Display label | Characteristic thickness |
| Total patents | 1,268 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 57 |
| 2016 | 73 |
| 2017 | 107 |
| 2018 | 92 |
| 2019 | 106 |
| 2020 | 150 |
| 2021 | 138 |
| 2022 | 120 |
| 2023 | 110 |
| 2024 | 154 |
| 2025 | 131 |
| 2026 | 30 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electrospun polymeric nanofiber filter material and devices
US-2024278172-A1 · Aug 22, 2024 · US
Crosslinked ion-exchange materials, related methods, and related articles
US-2024050906-A1 · Feb 15, 2024 · US
Separation of nanoparticles
US-2015375180-A1 · Dec 31, 2015 · US
Method of manufacturing polyamide-based reverse omosis membrane having excellent salt rejection and high permeable flux properties, and reverse osmosis membrane manufactured using the same
US-2015375179-A1 · Dec 31, 2015 · US
Virus filter
US-2015367291-A1 · Dec 24, 2015 · US
Polyamide water-treatment separation membrane having properties of high salt rejection and high flux and manufacturing method thereof
US-2015352501-A1 · Dec 10, 2015 · US
Polymer functional film and method for producing same
US-2015353721-A1 · Dec 10, 2015 · US
Curable Compositions and Membranes
US-2015343389-A1 · Dec 3, 2015 · US
MEMBRANE COMPRISING SELF-ASSEMBLED BLOCK COPOLYMER AND PROCESS FOR PRODUCING THE SAME BY HYBRID CASTING (Ib)
US-2015343396-A1 · Dec 3, 2015 · US
Hydrogen-separation-membrane protection layer and a coating method therefor
US-9199204-B2 · Dec 1, 2015 · US
Composite membrane utilized in membrane distillation
US-2015321146-A1 · Nov 12, 2015 · US
Stacked two-dimensional materials and methods for producing structures incorporating same
US-2015321147-A1 · Nov 12, 2015 · US
Separation membrane and separation membrane element
US-2015321148-A1 · Nov 12, 2015 · US
Porous membrane, process for producing porous membrane, process for producing clarified liquid, and porous-membrane module
US-9174172-B2 · Nov 3, 2015 · US
Composite Membrane and Moisture Adjustment Module Using Same
US-2015311546-A1 · Oct 29, 2015 · US
Composite Gas Separation Membranes with Dialkysiloxane Intermediate Layer
US-2015298071-A1 · Oct 22, 2015 · US
Gas separation membrane
US-2015298436-A1 · Oct 22, 2015 · US
Membrane, method for manufacturing the same, and composite membrane including the same
US-9156009-B2 · Oct 13, 2015 · US
Composite semipermeable membrane and composite semipermeable membrane element
US-2015283515-A1 · Oct 8, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D2325/04?
- CPC B01D2325/04 is the Cooperative Patent Classification code for “Characteristic thickness.”
- How many patents are filed under CPC B01D2325/04 (Characteristic thickness)?
- Our database includes 1,268 publications tagged with this CPC code.
- Is patent activity under CPC B01D2325/04 growing?
- Publication counts under this code: 154 in 2024 vs 131 in 2025 (latest complete years).