Separation membrane and manufacturing method therefor
US-2026054229-A1 · Feb 26, 2026 · US
Plasticizers
Plasticizers · 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 | B01D2323/20 |
| Official title | Plasticizers |
| Display label | Plasticizers |
| Total patents | 47 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 3 |
| 2017 | 5 |
| 2018 | 2 |
| 2019 | 3 |
| 2020 | 8 |
| 2021 | 4 |
| 2022 | 2 |
| 2023 | 4 |
| 2024 | 8 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Polyolefin microporous membrane, method for manufacturing the microporous membrane, and separator including the microporous membrane
US-2025219252-A1 · Jul 3, 2025 · US
Porous hollow fiber membrane and method for producing porous hollow fiber membrane
US-2025161883-A1 · May 22, 2025 · US
Degassers, degassing systems and the methods of using them
US-12226715-B2 · Feb 18, 2025 · US
Cellulose nanofiber (cnf) stabilized membranes and methods of making thereof
US-2024342665-A1 · Oct 17, 2024 · US
Method of manufacture for edible, porous cross-linked hollow fibers and membranes by ph induced phase separation and uses thereof
US-2024344006-A1 · Oct 17, 2024 · US
Device for cross flow filtration
US-12023157-B2 · Jul 2, 2024 · US
Device for whole blood cross flow filtration using a cannula needle
US-12023158-B2 · Jul 2, 2024 · US
Magnesium ion selective PVC membranes
US-12013366-B2 · Jun 18, 2024 · US
Method of making a microporous material
US-2024097277-A1 · Mar 21, 2024 · US
Polymer composition and method for manufacturing membranes therefrom
US-2024017219-A1 · Jan 18, 2024 · US
Method of making a microporous material
US-11862814-B2 · Jan 2, 2024 · US
Barriers including molecules covalently bonded to amphiphilic molecules, and methods of making the same
US-2023381718-A1 · Nov 30, 2023 · US
Filter structure and substrate treating system including filter structure
US-2023238254-A1 · Jul 27, 2023 · US
Method of making a microporous material
US-2023155247-A1 · May 18, 2023 · US
Method of making a microporous material
US-11563256-B2 · Jan 24, 2023 · US
Hollow fiber membrane and manufacturing method thereof
US-11406942-B2 · Aug 9, 2022 · US
Degassers, degassing systems and the methods of using them
US-2022176275-A1 · Jun 9, 2022 · US
Porous hollow fiber membrane, method for producing porous hollow fiber membrane and filtration method
US-11110402-B2 · Sep 7, 2021 · US
Separation film and production method therefor
US-11103835-B2 · Aug 31, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D2323/20?
- CPC B01D2323/20 is the Cooperative Patent Classification code for “Plasticizers.”
- How many patents are filed under CPC B01D2323/20 (Plasticizers)?
- Our database includes 47 publications tagged with this CPC code.
- Is patent activity under CPC B01D2323/20 growing?
- Publication counts under this code: 8 in 2024 vs 3 in 2025 (latest complete years).