Ion exchanger filter assembly and connection pipe
US-2026034541-A1 · Feb 5, 2026 · US
Ion-exchange processes in general; Apparatus therefor (ion-exchange chromatography processes or apparatus B01D15/08)
Ion-exchange processes in general; Apparatus therefor (ion-exchange chromatography processes or apparatus B01D15/08) · 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 | B01J47/00 |
| Official title | Ion-exchange processes in general; Apparatus therefor (ion-exchange chromatography processes or apparatus B01D15/08) |
| Display label | Ion-exchange processes in general; Apparatus therefor (ion-exchange chromatography processes or apparatus B01D15/08) |
| Total patents | 56 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 4 |
| 2017 | 2 |
| 2019 | 8 |
| 2020 | 10 |
| 2021 | 4 |
| 2022 | 9 |
| 2023 | 4 |
| 2024 | 4 |
| 2025 | 5 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Mobile medical fluid generation system
US-12485211-B2 · Dec 2, 2025 · US
Organic solvent purification method and purification system
US-12357984-B2 · Jul 15, 2025 · US
Chemical liquid purification method and chemical liquid
US-12311294-B2 · May 27, 2025 · US
Coolant reservoir including ion filter
US-2025140880-A1 · May 1, 2025 · US
Process for bio-1,3-butanediol purification from a fermentation broth
US-12227467-B2 · Feb 18, 2025 · US
Apparatus for pretreating ion exchange resin and method for pretreating ion exchange resin
US-12151234-B2 · Nov 26, 2024 · US
Chemical liquid purification method and chemical liquid
US-2024216843-A1 · Jul 4, 2024 · US
Functionalized porous material and related methods
US-2024198315-A1 · Jun 20, 2024 · US
Chemical liquid purification method and chemical liquid
US-11958005-B2 · Apr 16, 2024 · US
Double charge composite materials for contaminant removal and methods of making the same
US-11851350-B1 · Dec 26, 2023 · US
Ion filter for fuel-cell stack
US-11837756-B2 · Dec 5, 2023 · US
Mobile medical fluid generation system
US-2023381389-A1 · Nov 30, 2023 · US
Chemical liquid purification method and chemical liquid
US-2023087746-A1 · Mar 23, 2023 · US
Organic solvent purification method and purification system
US-2022371000-A1 · Nov 24, 2022 · US
Ion-Exchange Apparatus
US-2022371923-A1 · Nov 24, 2022 · US
Ion-Exchange Apparatus
US-2022356083-A1 · Nov 10, 2022 · US
Chemical liquid purification method and chemical liquid
US-11491428-B2 · Nov 8, 2022 · US
Ion-Exchange Apparatus
US-2022347629-A1 · Nov 3, 2022 · US
Ion filter for fuel-cell stack
US-2022209261-A1 · Jun 30, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01J47/00?
- CPC B01J47/00 is the Cooperative Patent Classification code for “Ion-exchange processes in general; Apparatus therefor (ion-exchange chromatography processes or apparatus B01D15/08).”
- How many patents are filed under CPC B01J47/00 (Ion-exchange processes in general; Apparatus therefor (ion-exchange chromatography processes or apparatus B01D15/08))?
- Our database includes 56 publications tagged with this CPC code.
- Is patent activity under CPC B01J47/00 growing?
- Publication counts under this code: 4 in 2024 vs 5 in 2025 (latest complete years).