Mixtures of anionic with cationic compounds

Mixtures of anionic with cationic compounds · Cooperative Patent Classification (CPC)

Chemical and metallurgical processes, compounds, and materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeC11D1/65
Official titleMixtures of anionic with cationic compounds
Display labelMixtures of anionic with cationic compounds
Total patents134

Filing trend

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

Filing activity over the last five years is growing.

Patents filed per year
YearPatents
201516
201610
20179
201811
201912
202017
20217
202212
202314
202415
202511

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 C11D1/65?
CPC C11D1/65 is the Cooperative Patent Classification code for “Mixtures of anionic with cationic compounds.”
How many patents are filed under CPC C11D1/65 (Mixtures of anionic with cationic compounds)?
Our database includes 134 publications tagged with this CPC code.
Is patent activity under CPC C11D1/65 growing?
Publication counts under this code: 15 in 2024 vs 11 in 2025 (latest complete years).