Stepwise chemical separation methods and systems using resin packed columns
US-12567510-B2 · Mar 3, 2026 · US
using columns or beds of different ion exchange materials in series
using columns or beds of different ion exchange materials in series · 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 | B01J47/026 |
| Official title | using columns or beds of different ion exchange materials in series |
| Display label | using columns or beds of different ion exchange materials in series |
| Total patents | 57 |
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 | 7 |
| 2016 | 3 |
| 2017 | 6 |
| 2018 | 4 |
| 2019 | 2 |
| 2020 | 6 |
| 2021 | 7 |
| 2022 | 5 |
| 2023 | 5 |
| 2024 | 6 |
| 2025 | 2 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Water softener
US-2026028252-A1 · Jan 29, 2026 · US
Mobile system and method for pfas effluent treatment
US-2026021467-A1 · Jan 22, 2026 · US
Processes for purifying polyether polyols using ion exchange resins
US-12515212-B2 · Jan 6, 2026 · US
Water-softening device
US-2025230068-A1 · Jul 17, 2025 · US
Organic solvent purification method and purification system
US-12357984-B2 · Jul 15, 2025 · US
Method for purifying organic solvent and apparatus for purifying organic solvent
US-12115525-B2 · Oct 15, 2024 · US
Detachable chemical filters
US-2024226808-A1 · Jul 11, 2024 · US
Processes for purifying polyether polyols using ion exchange resins
US-2024123438-A1 · Apr 18, 2024 · US
Systems and methods for separating radium from lead, bismuth, and thorium
US-11925879-B2 · Mar 12, 2024 · US
Method for producing ultrapure water, ultrapure water production system, and ion exchanger-filled module
US-11897790-B2 · Feb 13, 2024 · US
Water softening device, recycling method for water softening device, and method for cleaning water softening device
US-2024002263-A1 · Jan 4, 2024 · US
Method for analyzing metal impurity content
US-2023406729-A1 · Dec 21, 2023 · US
Stepwise Chemical Separation Methods and Systems Using Resin Packed Columns
US-2023360815-A1 · Nov 9, 2023 · US
Filter and metal ion removal device
US-11767239-B2 · Sep 26, 2023 · US
Method for producing ultrapure water
US-11629071-B2 · Apr 18, 2023 · US
Ion exchange system and method for conversion of aqueous lithium solution
US-2023019776-A1 · Jan 19, 2023 · US
Method for purifying non-aqueous solvent and method for pretreating ion exchange resin for purification of non-aqueous solvent
US-2022387987-A1 · Dec 8, 2022 · US
Organic solvent purification method and purification system
US-2022371000-A1 · Nov 24, 2022 · US
Method for purifying organic solvent and apparatus for purifying organic solvent
US-2022234037-A1 · Jul 28, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01J47/026?
- CPC B01J47/026 is the Cooperative Patent Classification code for “using columns or beds of different ion exchange materials in series.”
- How many patents are filed under CPC B01J47/026 (using columns or beds of different ion exchange materials in series)?
- Our database includes 57 publications tagged with this CPC code.
- Is patent activity under CPC B01J47/026 growing?
- Publication counts under this code: 6 in 2024 vs 2 in 2025 (latest complete years).