Control and optimization of continuous chromatography process
US-2024295533-A1 · Sep 5, 2024 · US
Cation-exchange
Cation-exchange · 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 | B01D15/362 |
| Official title | {Cation-exchange} |
| Display label | Cation-exchange |
| Total patents | 640 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 54 |
| 2016 | 47 |
| 2017 | 57 |
| 2018 | 54 |
| 2019 | 79 |
| 2020 | 52 |
| 2021 | 78 |
| 2022 | 65 |
| 2023 | 52 |
| 2024 | 38 |
| 2025 | 52 |
| 2026 | 12 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process for purification and isolation of estrogens
US-2016375378-A1 · Dec 29, 2016 · US
Removal of serine proteases by treatment with finely divided silicon dioxide
US-2016311889-A1 · Oct 27, 2016 · US
Water recovery method and system
US-2016264443-A1 · Sep 15, 2016 · US
Methods of purifying recombinant proteins
US-2016176921-A1 · Jun 23, 2016 · US
Process and system for obtaining botulinum neurotoxin
US-2016097045-A1 · Apr 7, 2016 · US
Device comprising a cation ion-exchanger for reducing the acidity of motor oil and engine with such device
US-9212577-B2 · Dec 15, 2015 · US
Process and system for obtaining botulinum neurotoxin
US-9206409-B2 · Dec 8, 2015 · US
Viral Inactivation During Purification of Antibodies
US-2015344564-A1 · Dec 3, 2015 · US
Human antibodies that bind human TNF-alpha and methods of preparing the same
US-9193787-B2 · Nov 24, 2015 · US
Dissociation of product-complexed contaminants in chromatography
US-9193760-B2 · Nov 24, 2015 · US
Phenol resin treatment improvement
US-9193652-B2 · Nov 24, 2015 · US
Filter device combining beads and fibers
US-2015320924-A1 · Nov 12, 2015 · US
Integrated device for liver support system
US-2015290380-A1 · Oct 15, 2015 · US
Purification of polypeptides using dual stage tangential-flow ultrafiltration
US-2015274773-A1 · Oct 1, 2015 · US
Liver support system
US-2015273127-A1 · Oct 1, 2015 · US
Cation exchange chromatography carrier for refining of antibodies, and method for separation of antibody monomers from polymers thereof produced in antibody drug manufacturing process
US-2015266919-A1 · Sep 24, 2015 · US
Chromatography Media And Method
US-2015258540-A1 · Sep 17, 2015 · US
Phenol resin treatment improvement
US-2015251984-A1 · Sep 10, 2015 · US
Separation and recovery of xylose using weakly basic anion exchange resins
US-2015247211-A1 · Sep 3, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D15/362?
- CPC B01D15/362 is the Cooperative Patent Classification code for “Cation-exchange.”
- How many patents are filed under CPC B01D15/362 (Cation-exchange)?
- Our database includes 640 publications tagged with this CPC code.
- Is patent activity under CPC B01D15/362 growing?
- Publication counts under this code: 38 in 2024 vs 52 in 2025 (latest complete years).