Monolayer, composite, gas separation material, filter, gas separation device and method for manufacturing composite
US-12128366-B2 · Oct 29, 2024 · US
Polymethylmethacrylate
Polymethylmethacrylate · 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 | B01D71/4011 |
| Official title | {Polymethylmethacrylate} |
| Display label | Polymethylmethacrylate |
| Total patents | 121 |
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 | 6 |
| 2016 | 5 |
| 2017 | 10 |
| 2018 | 9 |
| 2019 | 17 |
| 2020 | 17 |
| 2021 | 20 |
| 2022 | 10 |
| 2023 | 12 |
| 2024 | 8 |
| 2025 | 5 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Crosslinked ion-exchange materials, related methods, and related articles
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Tangential Viral Filtration
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Polyacid-functionalized porous membranes, related methods, and related polyacid polymers
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Block copolymer separators with nano-channels for lithium-ion batteries
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Films derived from two or more chemically distinct block copolymers, methods of making same, and uses thereof
US-2020216618-A1 · Jul 9, 2020 · US
Mixed matrix membranes with embedded polymeric particles and networks and related compositions, methods, and systems
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Sterile solutions product bag
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Sterile solutions product bag
US-10617603-B2 · Apr 14, 2020 · US
Ultrahigh molecular weight block copolymers and polymers, methods of making same, and uses of same
US-2020062882-A1 · Feb 27, 2020 · US
Battery and method of fabricating porous membrane
US-2020052277-A1 · Feb 13, 2020 · US
Block Copolymer Containing Photo-sensitive Moiety
US-2020040122-A1 · Feb 6, 2020 · US
Composition for CO2 gas separation membrane, CO2 gas separation membrane and method for producing same, and CO2 gas separation membrane module
US-10507434-B2 · Dec 17, 2019 · US
Polymer composite film, preparation method therefor, and lithium-ion battery
US-2019326577-A1 · Oct 24, 2019 · US
Copolymer, separation membrane, medical device, and blood purifier using the copolymer
US-2019292288-A1 · Sep 26, 2019 · US
Composite anion exchange membrane, method for producing the same, ion exchange membrane module, and ion exchange device
US-10421044-B2 · Sep 24, 2019 · US
Heat-Induced Grafting Of Nonwovens For High Capacity Ion Exchange Separation
US-2019284321-A1 · Sep 19, 2019 · US
Fabrication of filtration membranes
US-2019262781-A1 · Aug 29, 2019 · US
Gas separation membrane element, gas separation membrane module and gas separation apparatus
US-2019247797-A1 · Aug 15, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D71/4011?
- CPC B01D71/4011 is the Cooperative Patent Classification code for “Polymethylmethacrylate.”
- How many patents are filed under CPC B01D71/4011 (Polymethylmethacrylate)?
- Our database includes 121 publications tagged with this CPC code.
- Is patent activity under CPC B01D71/4011 growing?
- Publication counts under this code: 8 in 2024 vs 5 in 2025 (latest complete years).