Use of material as anion exchangers; Treatment of material for improving the anion exchange properties

Use of material as anion exchangers; Treatment of material for improving the anion exchange properties · Cooperative Patent Classification (CPC)

Separating, mixing, shaping, printing, and transporting materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeB01J41/08
Official titleUse of material as anion exchangers; Treatment of material for improving the anion exchange properties
Display labelUse of material as anion exchangers; Treatment of material for improving the anion exchange properties
Total patents25

Filing trend

Year-over-year patent counts classified under this CPC code.

Filing activity over the last five years is declining.

Patents filed per year
YearPatents
20152
20173
20183
20191
20202
20214
20221
20234
20242
20253

Representative patents

Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.

Frequently asked questions

Answers are generated from the same data shown on this page.

What is CPC B01J41/08?
CPC B01J41/08 is the Cooperative Patent Classification code for “Use of material as anion exchangers; Treatment of material for improving the anion exchange properties.”
How many patents are filed under CPC B01J41/08 (Use of material as anion exchangers; Treatment of material for improving the anion exchange properties)?
Our database includes 25 publications tagged with this CPC code.
Is patent activity under CPC B01J41/08 growing?
Publication counts under this code: 2 in 2024 vs 3 in 2025 (latest complete years).