Stepwise chemical separation methods and systems using resin packed columns
US-12567510-B2 · Mar 3, 2026 · US
with alternately arranged cationic and anionic exchangers
with alternately arranged cationic and anionic exchangers · 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 | B01J47/028 |
| Official title | with alternately arranged cationic and anionic exchangers |
| Display label | with alternately arranged cationic and anionic exchangers |
| Total patents | 29 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2017 | 1 |
| 2018 | 4 |
| 2019 | 5 |
| 2020 | 6 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 5 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Purification process for removal of tyrosine sulfation antibody variants; purified compositions
US-12162938-B2 · Dec 10, 2024 · US
Water softening device
US-2024342701-A1 · Oct 17, 2024 · US
Method for purifying organic solvent and apparatus for purifying organic solvent
US-12115525-B2 · Oct 15, 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
Stepwise Chemical Separation Methods and Systems Using Resin Packed Columns
US-2023360815-A1 · Nov 9, 2023 · US
Aqueous hydrogen peroxide purification method and purification system
US-11524896-B2 · Dec 13, 2022 · US
Method for purifying organic solvent and apparatus for purifying organic solvent
US-2022234037-A1 · Jul 28, 2022 · US
Method for producing ultrapure water, ultrapure water production system, and ion exchanger-filled module
US-2021246050-A1 · Aug 12, 2021 · US
High-purity carboxylic acid ester and method for producing same
US-11046634-B2 · Jun 29, 2021 · US
Aqueous hydrogen peroxide purification method and purification system
US-2020290873-A1 · Sep 17, 2020 · US
Purification Process for Removal of Tyrosine Sulfation Antibody Variants; Purified Compositions
US-2020123251-A1 · Apr 23, 2020 · US
Method of purifying water
US-10610860-B2 · Apr 7, 2020 · US
Method of purifying water
US-10610859-B2 · Apr 7, 2020 · US
Surface treatment plant, preconditioning apparatus and process for treating process medium and/or rinsing medium
US-2020032398-A1 · Jan 30, 2020 · US
High-purity carboxylic acid ester and method for producing same
US-2020002264-A1 · Jan 2, 2020 · US
Method of purifying water
US-2019314806-A1 · Oct 17, 2019 · US
Aqueous hydrogen peroxide purification method and purification system
US-2019263660-A1 · Aug 29, 2019 · US
Method of purifying water
US-10301197-B2 · May 28, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01J47/028?
- CPC B01J47/028 is the Cooperative Patent Classification code for “with alternately arranged cationic and anionic exchangers.”
- How many patents are filed under CPC B01J47/028 (with alternately arranged cationic and anionic exchangers)?
- Our database includes 29 publications tagged with this CPC code.
- Is patent activity under CPC B01J47/028 growing?
- Publication counts under this code: 1 in 2023 vs 5 in 2024 (latest complete years).