Production of organic acid from monovalent acid salt via electrodialysis using a two-compartment electrodialysis unit
US-2026091354-A1 · Apr 2, 2026 · US
comprising the membrane sequence AB or BA, where B is a bipolar membrane
comprising the membrane sequence AB or BA, where B is a bipolar membrane · 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 | B01D61/465 |
| Official title | {comprising the membrane sequence AB or BA, where B is a bipolar membrane} |
| Display label | comprising the membrane sequence AB or BA, where B is a bipolar membrane |
| Total patents | 53 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 5 |
| 2018 | 3 |
| 2019 | 6 |
| 2020 | 5 |
| 2021 | 11 |
| 2022 | 3 |
| 2023 | 5 |
| 2024 | 4 |
| 2025 | 5 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Carbon dioxide electrolytic device and method of controlling carbon dioxide electrolytic device
US-12546017-B2 · Feb 10, 2026 · US
Production of organic acid from monovalent acid salt via electrodialysis using a three-compartment electrodialysis unit
US-2026034514-A1 · Feb 5, 2026 · US
Method of extracting metal from salt solution derived from spent battery
US-2025149669-A1 · May 8, 2025 · US
Multi-stage bipolar electrodialysis system for high concentration acid or base production
US-12257551-B2 · Mar 25, 2025 · US
Three-Compartment Bipolar Membrane Electrodialysis Of Salts Of Amino Acids
US-2025091013-A1 · Mar 20, 2025 · US
Membranes for enhancing rates of water dissociation and water formation
US-12233381-B2 · Feb 25, 2025 · US
Three-compartment bipolar membrane electrodialysis of salts of amino acids
US-12186709-B2 · Jan 7, 2025 · US
Extraction of ammonia and sulfuric acid from ammonium-sulfate-rich (waste) waters
US-2024335793-A1 · Oct 10, 2024 · US
Devices for urea electrolysis and methods of using same
US-2024165309-A1 · May 23, 2024 · US
High-efficient magnesium ion removal system for salt lake brine based on in situ alkali production using bipolar membrane electrochemical process
US-2024124336-A1 · Apr 18, 2024 · US
Devices for urea electrolysis and methods of using same
US-11925737-B2 · Mar 12, 2024 · US
Dual-membrane on-line generator for acid or alkali solution
US-11827990-B2 · Nov 28, 2023 · US
Carbon dioxide electrolytic device and method of controlling carbon dioxide electrolytic device
US-2023295812-A1 · Sep 21, 2023 · US
System and method of treating waste water
US-11673818-B2 · Jun 13, 2023 · US
Wastewater treatment system and method for semiconductor fabrication process
US-2023071797-A1 · Mar 9, 2023 · US
Water production for coffee brewing by electrodeionization
US-11542183-B2 · Jan 3, 2023 · US
System and method of treating waste water
US-2022204367-A1 · Jun 30, 2022 · US
Electrodialyzer and electrodialysis system for co2 capture from ocean water
US-2022144673-A1 · May 12, 2022 · US
Process and apparatus for enriching silicate in drinking water
US-11220448-B2 · Jan 11, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D61/465?
- CPC B01D61/465 is the Cooperative Patent Classification code for “comprising the membrane sequence AB or BA, where B is a bipolar membrane.”
- How many patents are filed under CPC B01D61/465 (comprising the membrane sequence AB or BA, where B is a bipolar membrane)?
- Our database includes 53 publications tagged with this CPC code.
- Is patent activity under CPC B01D61/465 growing?
- Publication counts under this code: 4 in 2024 vs 5 in 2025 (latest complete years).