Anion exchange membrane and method for producing the same
US-2024399319-A1 · Dec 5, 2024 · US
comprising only a single cell, only one anion or cation exchange membrane or one pair of anion and cation membranes
comprising only a single cell, only one anion or cation exchange membrane or one pair of anion and cation membranes · 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 | B01D61/461 |
| Official title | {comprising only a single cell, only one anion or cation exchange membrane or one pair of anion and cation membranes} |
| Display label | comprising only a single cell, only one anion or cation exchange membrane or one pair of anion and cation membranes |
| Total patents | 81 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 2 |
| 2017 | 5 |
| 2018 | 4 |
| 2019 | 6 |
| 2020 | 10 |
| 2021 | 5 |
| 2022 | 9 |
| 2023 | 10 |
| 2024 | 9 |
| 2025 | 14 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Membrane-based alkali metal salt precipitation
US-2024309520-A1 · Sep 19, 2024 · US
Membrane-based alkali metal production system
US-2024309532-A1 · Sep 19, 2024 · US
Polymer Films
US-2024199830-A1 · Jun 20, 2024 · US
System and method for recovering organic acid products from a multicomponent feed solution
US-2024181394-A1 · Jun 6, 2024 · US
Systems and Methods for Bipolar Membranes
US-2024024823-A1 · Jan 25, 2024 · US
Apparatus and Methods for Nitrogen Reduction in Wastewater
US-2023365444-A1 · Nov 16, 2023 · US
Desalination of high chloride salt absorbed porous beads
US-2023321630-A1 · Oct 12, 2023 · US
Water-impermeable carbon-based electrolyte and separation membrane and fabrication thereof
US-11779886-B1 · Oct 10, 2023 · US
Device for purifying fluid using ion concentration polarization phenomenon and purification system
US-11767241-B2 · Sep 26, 2023 · US
Electrochemical desalination system
US-2023264140-A1 · Aug 24, 2023 · US
Nutrient extraction and recovery device for isolation and separation of target products from animal produced waste streams
US-11697624-B2 · Jul 11, 2023 · US
Electrochemical water deionization separators
US-2023068559-A1 · Mar 2, 2023 · US
Method for co-producing iodine and salt
US-2023069167-A1 · Mar 2, 2023 · US
Direct Production Of Lithium Hydroxide From Brine By Electrochemical Flow Cells
US-2023067397-A1 · Mar 2, 2023 · US
Water deionization cells
US-2023048716-A1 · Feb 16, 2023 · US
Ion suppressor and ion chromatograph
US-11531010-B2 · Dec 20, 2022 · US
Ion-Exchange Apparatus
US-2022371923-A1 · Nov 24, 2022 · US
Ion-Exchange Apparatus
US-2022356083-A1 · Nov 10, 2022 · US
Ion-Exchange Apparatus
US-2022347629-A1 · Nov 3, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D61/461?
- CPC B01D61/461 is the Cooperative Patent Classification code for “comprising only a single cell, only one anion or cation exchange membrane or one pair of anion and cation membranes.”
- How many patents are filed under CPC B01D61/461 (comprising only a single cell, only one anion or cation exchange membrane or one pair of anion and cation membranes)?
- Our database includes 81 publications tagged with this CPC code.
- Is patent activity under CPC B01D61/461 growing?
- Publication counts under this code: 9 in 2024 vs 14 in 2025 (latest complete years).