Water softener
US-2026028252-A1 · Jan 29, 2026 · US
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containing cationic and anionic exchangers in separate beds
containing cationic and anionic exchangers in separate beds · 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 | B01J49/08 |
| Official title | containing cationic and anionic exchangers in separate beds |
| Display label | containing cationic and anionic exchangers in separate beds |
| Total patents | 23 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2017 | 2 |
| 2018 | 2 |
| 2019 | 4 |
| 2020 | 2 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 2 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Water softening device
US-2025091923-A1 · Mar 20, 2025 · US
Acidic and alkaline cleaning of ion exchange systems, such as water purifiers, by ion exchange resin
US-2024286934-A1 · Aug 29, 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
JMZ-12, a disordered AEI/CHA family of zeolites, its synthesis and use
US-11851339-B2 · Dec 26, 2023 · US
Zirconium oxide module conditioning
US-11642654-B2 · May 9, 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
Jmz-12, a disordered aei/cha family of zeolites, its synthesis and use
US-2022281752-A1 · Sep 8, 2022 · US
Zirconium oxide module conditioning
US-2021187481-A1 · Jun 24, 2021 · US
Zirconium oxide module conditioning
US-10981148-B2 · Apr 20, 2021 · US
Method of purifying water
US-10610860-B2 · Apr 7, 2020 · US
Method of purifying water
US-10610859-B2 · Apr 7, 2020 · US
Method of purifying water
US-2019314806-A1 · Oct 17, 2019 · US
Method of purifying water
US-10301197-B2 · May 28, 2019 · US
Ion exchange device and method of using same
US-2019099750-A1 · Apr 4, 2019 · US
Method of purifying water
US-2019070600-A1 · Mar 7, 2019 · US
Method of purifying water
US-2018244544-A1 · Aug 30, 2018 · US
Zirconium oxide module conditioning
US-2018147558-A1 · May 31, 2018 · US
Ion exchanger, water treatment device provided with same, and hot water supply device
US-9701547-B2 · Jul 11, 2017 · US
Mobile water treatment and resin transfer hub
US-9593029-B2 · Mar 14, 2017 · US