Crosslinked ion-exchange materials, related methods, and related articles
US-2024050906-A1 · Feb 15, 2024 · US
Electrodialysis
Electrodialysis · 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 | B01D61/422 |
| Official title | {Electrodialysis} |
| Display label | Electrodialysis |
| Total patents | 252 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 13 |
| 2016 | 15 |
| 2017 | 21 |
| 2018 | 32 |
| 2019 | 21 |
| 2020 | 21 |
| 2021 | 23 |
| 2022 | 20 |
| 2023 | 26 |
| 2024 | 27 |
| 2025 | 23 |
| 2026 | 10 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Continuous On-Board Processing of Seafood After Fishing on the Sea
US-2018332865-A1 · Nov 22, 2018 · US
Continuous On-Board Processing of Seafood after Fishing on the Sea
US-2018332864-A1 · Nov 22, 2018 · US
Process For The Purification Of Biomass Hydrolysate
US-2018304200-A1 · Oct 25, 2018 · US
Subsea equipment cleaning system and method
US-2018251386-A1 · Sep 6, 2018 · US
Ion pump
US-10058821-B2 · Aug 28, 2018 · US
Ion Exchange Membranes
US-2018201746-A1 · Jul 19, 2018 · US
Curable compositions and membranes
US-9944765-B2 · Apr 17, 2018 · US
Electrolyte-separating membrane for selective transfer of cations through the membrane and process for manufacturing said membrane
US-9925495-B2 · Mar 27, 2018 · US
Subsea water processing system and associated methods
US-2018071686-A1 · Mar 15, 2018 · US
Building materials from an aqueous solution
US-2018072626-A1 · Mar 15, 2018 · US
Method of preparing oxalic acid
US-2017370011-A1 · Dec 28, 2017 · US
Methods of Providing Inlets and Outlets to Cell Pairs in Wound ED Devices
US-2017361278-A1 · Dec 21, 2017 · US
Integrated desulfurization and carbon dioxide capture system for flue gases
US-2017354926-A1 · Dec 14, 2017 · US
Cation exchange membrane and method for producing same
US-9833742-B2 · Dec 5, 2017 · US
Method for efficient co2 degasification
US-2017342006-A1 · Nov 30, 2017 · US
Chemical extraction from an aqueous solution
US-2017342328-A1 · Nov 30, 2017 · US
Building materials from an aqueous solution
US-2017341982-A1 · Nov 30, 2017 · US
Water recovery apparatus and electrodialysis device
US-2017313602-A1 · Nov 2, 2017 · US
Anion exchange membrane for electrodialysis applications and process for the preparation thereof
US-9745432-B2 · Aug 29, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D61/422?
- CPC B01D61/422 is the Cooperative Patent Classification code for “Electrodialysis.”
- How many patents are filed under CPC B01D61/422 (Electrodialysis)?
- Our database includes 252 publications tagged with this CPC code.
- Is patent activity under CPC B01D61/422 growing?
- Publication counts under this code: 27 in 2024 vs 23 in 2025 (latest complete years).