Polymers attached to the pigment surface (C09B68/444, C09B68/446 take precedence)

Polymers attached to the pigment surface (C09B68/444, C09B68/446 take precedence) · 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 codeC09B68/41
Official title{Polymers attached to the pigment surface (C09B68/444, C09B68/446 take precedence)}
Display labelPolymers attached to the pigment surface (C09B68/444, C09B68/446 take precedence)
Total patents66

Filing trend

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

Filing activity over the last five years is rapidly declining.

Patents filed per year
YearPatents
201513
20166
201713
20189
20197
20202
20214
20227
20231
20242
20251
20261

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 C09B68/41?
CPC C09B68/41 is the Cooperative Patent Classification code for “Polymers attached to the pigment surface (C09B68/444, C09B68/446 take precedence).”
How many patents are filed under CPC C09B68/41 (Polymers attached to the pigment surface (C09B68/444, C09B68/446 take precedence))?
Our database includes 66 publications tagged with this CPC code.
Is patent activity under CPC C09B68/41 growing?
Publication counts under this code: 2 in 2024 vs 1 in 2025 (latest complete years).