Membranes for acid-sensitive solvents
US-12502664-B2 · Dec 23, 2025 · US
Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
Use of material as cation exchangers; Treatment of material for improving the cation exchange properties · 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 | B01J39/08 |
| Official title | Use of material as cation exchangers; Treatment of material for improving the cation exchange properties |
| Display label | Use of material as cation exchangers; Treatment of material for improving the cation exchange properties |
| Total patents | 46 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 9 |
| 2017 | 8 |
| 2018 | 11 |
| 2019 | 2 |
| 2020 | 2 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 3 |
| 2024 | 1 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Antioxidant protection for ion exchange resins
US-12226762-B2 · Feb 18, 2025 · US
Method for recovering active metal of lithium secondary battery
US-12211979-B2 · Jan 28, 2025 · US
Antioxidant Protection for Ion Exchange Resins
US-2024189807-A1 · Jun 13, 2024 · US
Antioxidant protection for ion exchange resins
US-11845074-B2 · Dec 19, 2023 · US
Method for recovering active metal of lithium secondary battery
US-2023369670-A1 · Nov 16, 2023 · US
Method for producing acid-decomposable polymer
US-11725078-B2 · Aug 15, 2023 · US
Membranes for acid-sensitive solvents
US-2022184595-A1 · Jun 16, 2022 · US
Fluorinated crown ethers and methods and systems for extraction of lithium using same
US-11266926-B2 · Mar 8, 2022 · US
Method for producing acid-decomposable polymer
US-2021024690-A1 · Jan 28, 2021 · US
Antioxidant Protection for Ion Exchange Resins
US-2021001323-A1 · Jan 7, 2021 · US
Fluorinated crown ethers and methods and systems for extraction of lithium using same
US-2020346137-A1 · Nov 5, 2020 · US
Purification platform for bispecific antibodies
US-10626142-B2 · Apr 21, 2020 · US
Molding for a hydrophobic zeolitic material and process for its production
US-10434503-B2 · Oct 8, 2019 · US
Method for using a softened acidic water source
US-10183288-B2 · Jan 22, 2019 · US
Filter for filtering particulate matter from exhaust gas emitted from a compression ignition engine
US-2018361364-A1 · Dec 20, 2018 · US
Process for the removal of heat stable salts from acid gas absorbents
US-10118123-B2 · Nov 6, 2018 · US
Urea sulfate and sodium chloride blend for regeneration of cation exchange resins
US-10092898-B2 · Oct 9, 2018 · US
Integrated acid regeneration of ion exchange resins for industrial applications
US-10058858-B2 · Aug 28, 2018 · US
Acid regeneration of ion exchange resins for industrial applications
US-10052625-B2 · Aug 21, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01J39/08?
- CPC B01J39/08 is the Cooperative Patent Classification code for “Use of material as cation exchangers; Treatment of material for improving the cation exchange properties.”
- How many patents are filed under CPC B01J39/08 (Use of material as cation exchangers; Treatment of material for improving the cation exchange properties)?
- Our database includes 46 publications tagged with this CPC code.
- Is patent activity under CPC B01J39/08 growing?
- Publication counts under this code: 1 in 2024 vs 3 in 2025 (latest complete years).