Method of cleaning resins
US-2019366322-A1 · Dec 5, 2019 · US
in the weakly acidic form
in the weakly acidic form · 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 | B01J39/07 |
| Official title | in the weakly acidic form |
| Display label | in the weakly acidic form |
| Total patents | 154 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 13 |
| 2017 | 16 |
| 2018 | 14 |
| 2019 | 16 |
| 2020 | 18 |
| 2021 | 16 |
| 2022 | 16 |
| 2023 | 11 |
| 2024 | 10 |
| 2025 | 11 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Contaminants removal with simultaneous desalination using carbon dioxide regenerated hybrid ion exchanger nanomaterials
US-10472261-B2 · Nov 12, 2019 · US
Strong cation exchange chromatographic matrix and method for using same
US-2019217285-A1 · Jul 18, 2019 · US
Methods of purifying proteins
US-2019218248-A1 · Jul 18, 2019 · US
Compound and synthesis method therefor
US-2019111418-A1 · Apr 18, 2019 · US
Malodor abatement in waste products
US-2019091362-A1 · Mar 28, 2019 · US
Ion exchange membrane for alkali chloride electrolysis, method for its production and alkali chloride electrolysis apparatus
US-2019040538-A1 · Feb 7, 2019 · US
Method for using a softened acidic water source
US-10183288-B2 · Jan 22, 2019 · US
Purification process for hydrolysable organic solvent
US-2019009267-A1 · Jan 10, 2019 · US
Urea sulfate and sodium chloride blend for regeneration of cation exchange resins
US-10092898-B2 · Oct 9, 2018 · US
Contaminants Removal with Simultaneous Desalination Using Carbon Dioxide Regenerated Hybrid Ion Exchanger Nanomaterials
US-2018273401-A1 · Sep 27, 2018 · US
Microparticles for cell disruption and/or biomolecule recovery
US-10076749-B2 · Sep 18, 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
System and method for recycling rare earth and ammonia nitrogen from rare earth wastewater
US-10046979-B2 · Aug 14, 2018 · US
System employing ion exchange resin regenerated by acid
US-2018222774-A1 · Aug 9, 2018 · US
Ion Exchange Membranes
US-2018200708-A1 · Jul 19, 2018 · US
Method for extracting epsilon-polylysine and its hydrochloride salt from fermentation broth
US-2018127462-A1 · May 10, 2018 · US
System employing ion exchange resin regenerated by acid
US-9963361-B2 · May 8, 2018 · US
Acid regeneration of ion exchange resins for industrial applications
US-9919935-B2 · Mar 20, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01J39/07?
- CPC B01J39/07 is the Cooperative Patent Classification code for “in the weakly acidic form.”
- How many patents are filed under CPC B01J39/07 (in the weakly acidic form)?
- Our database includes 154 publications tagged with this CPC code.
- Is patent activity under CPC B01J39/07 growing?
- Publication counts under this code: 10 in 2024 vs 11 in 2025 (latest complete years).