Carbon membrane for fluid separation, fluid separation membrane module, and method for producing carbon membrane for fluid separation
US-10159943-B2 · Dec 25, 2018 · US
Pore-control agents or pore formers
Pore-control agents or pore formers · 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 | B01D2323/18 |
| Official title | Pore-control agents or pore formers |
| Display label | Pore-control agents or pore formers |
| Total patents | 118 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 23 |
| 2016 | 11 |
| 2017 | 16 |
| 2018 | 12 |
| 2019 | 13 |
| 2020 | 10 |
| 2021 | 7 |
| 2022 | 6 |
| 2023 | 6 |
| 2024 | 5 |
| 2025 | 8 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
A polyvinyl alcohol porous support and method
US-2018326360-A1 · Nov 15, 2018 · US
Hierarchically Structured, Nitrogen-Doped Carbon Membranes
US-2018305827-A1 · Oct 25, 2018 · US
Composite carbon molecular sieve membranes having anti-substructure collapse particles loaded in a core thereof
US-10086337-B2 · Oct 2, 2018 · US
Method of manufacturing porous fluorine-containing polymer membrane
US-10000617-B2 · Jun 19, 2018 · US
Method for making porous asymmetric membranes and associated membranes and separation modules
US-2018154315-A1 · Jun 7, 2018 · US
Microporous polymeric composition
US-2018142075-A1 · May 24, 2018 · US
Ultra-thin polymer film, and porous ultra-thin polymer film
US-9938384-B2 · Apr 10, 2018 · US
Method for producing porous polyimide film, porous polyimide film and separator using same
US-9911955-B2 · Mar 6, 2018 · US
Method of making a hydrogen transport membrane and article
US-9868671-B2 · Jan 16, 2018 · US
Method for producing a filter intended to filter nanoparticles, obtained filter and associated method for the collection and quantitative analysis of nanoparticles
US-9833750-B2 · Dec 5, 2017 · US
High throughput membrane with channels
US-9808770-B2 · Nov 7, 2017 · US
Hollow fiber filtration membrane
US-2017304780-A1 · Oct 26, 2017 · US
Porous polymeric membrane with high void volume
US-9776142-B2 · Oct 3, 2017 · US
Porous polymeric membrane with high void volume
US-9764292-B2 · Sep 19, 2017 · US
Hollow fiber membrane having hexagonal voids
US-9737860-B2 · Aug 22, 2017 · US
Carbon film for fluid separation, fluid separation film module, and method for producing carbon film for fluid separation
US-2017216779-A1 · Aug 3, 2017 · US
High toughness hollow fiber membranes based on vinylidene fluoride polymers
US-2017216780-A1 · Aug 3, 2017 · US
Composite perfluorohydrocarbon membranes, their preparation and use
US-2017203257-A1 · Jul 20, 2017 · US
Method for producing porous polyimide film, porous polyimide film and separator using same
US-2017187021-A1 · Jun 29, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D2323/18?
- CPC B01D2323/18 is the Cooperative Patent Classification code for “Pore-control agents or pore formers.”
- How many patents are filed under CPC B01D2323/18 (Pore-control agents or pore formers)?
- Our database includes 118 publications tagged with this CPC code.
- Is patent activity under CPC B01D2323/18 growing?
- Publication counts under this code: 5 in 2024 vs 8 in 2025 (latest complete years).