Porous membranes for high pressure filtration
US-12064731-B2 · Aug 20, 2024 · US
Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of the groups B01D71/46 - B01D71/70 {and B01D71/701 - B01D71/702}
Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of the groups B01D71/46 - B01D71/70 {and B01D71/701 - B01D71/702} · 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 | B01D71/72 |
| Official title | Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of the groups B01D71/46 - B01D71/70 {and B01D71/701 - B01D71/702} |
| Display label | Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of the groups B01D71/46 - B01D71/70 {and B01D71/701 - B01D71/702} |
| Total patents | 103 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 5 |
| 2017 | 9 |
| 2018 | 3 |
| 2019 | 7 |
| 2020 | 7 |
| 2021 | 10 |
| 2022 | 13 |
| 2023 | 12 |
| 2024 | 22 |
| 2025 | 8 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Highly CO2-permeable and Selective Polymer Blend Membrane and Process for Preparing the Same
US-2022372270-A1 · Nov 24, 2022 · US
Gas separation membrane manufacturing method
US-11426700-B2 · Aug 30, 2022 · US
A Separator for Alkaline Water Electrolysis
US-2022259751-A1 · Aug 18, 2022 · US
Apparatus for generating electrical energy based on hydrophilic fiber membrane and method of fabricating same
US-11404222-B2 · Aug 2, 2022 · US
High free volume membrane for gas separation
US-2022212139-A1 · Jul 7, 2022 · US
Materials for reducing acids from liquid phases
US-2022056181-A1 · Feb 24, 2022 · US
Porous membranes for high pressure filtration
US-2022040646-A1 · Feb 10, 2022 · US
Porous membranes for high pressure filtration
US-2022040647-A1 · Feb 10, 2022 · US
Electrically conductive membrane assembly and related systems and methods
US-2022008869-A1 · Jan 13, 2022 · US
Mechanically robust PIM-1 and polyphosphazene blended polymer for gas separation membranes
US-11219857-B1 · Jan 11, 2022 · US
Carbon dioxide environmental control system
US-11213785-B2 · Jan 4, 2022 · US
Storage ring quantum computer
US-2021343939-A1 · Nov 4, 2021 · US
Two-dimensional nanoporous covalent organic framework for selective separation and filtration membrane formed therefrom
US-2021331122-A1 · Oct 28, 2021 · US
Diversity-oriented polymers of intrinsic microporosity and uses thereof
US-2021309802-A1 · Oct 7, 2021 · US
Composite membranes having intrinsic microporosity
US-11117104-B2 · Sep 14, 2021 · US
High Flow Liquid Filtration Device Including A Porous Polyparaxylylene Membrane Or A Porous Polyparaxylylene/Polytetrafluoroethylene Composite Membrane
US-2021275976-A1 · Sep 9, 2021 · US
Composition useful for production of acidic gas separation membrane
US-2021268450-A1 · Sep 2, 2021 · US
Gas separation membrane manufacturing method
US-2021236996-A1 · Aug 5, 2021 · US
Gas separation membrane containing heteromorphous shaped silica nanoparticles
US-11052355-B2 · Jul 6, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D71/72?
- CPC B01D71/72 is the Cooperative Patent Classification code for “Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of the groups B01D71/46 - B01D71/70 {and B01D71/701 - B01D71/702}.”
- How many patents are filed under CPC B01D71/72 (Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of the groups B01D71/46 - B01D71/70 {and B01D71/701 - B01D71/702})?
- Our database includes 103 publications tagged with this CPC code.
- Is patent activity under CPC B01D71/72 growing?
- Publication counts under this code: 22 in 2024 vs 8 in 2025 (latest complete years).