Opacifiers, e.g. fluorides or phosphates; Pigments

Opacifiers, e.g. fluorides or phosphates; Pigments · 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 codeC03C1/04
Official titleOpacifiers, e.g. fluorides or phosphates; Pigments
Display labelOpacifiers, e.g. fluorides or phosphates; Pigments
Total patents67

Filing trend

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

Filing activity over the last five years is stable.

Patents filed per year
YearPatents
20151
20163
20175
20181
20192
20207
20215
202215
202314
20249
20255

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 C03C1/04?
CPC C03C1/04 is the Cooperative Patent Classification code for “Opacifiers, e.g. fluorides or phosphates; Pigments.”
How many patents are filed under CPC C03C1/04 (Opacifiers, e.g. fluorides or phosphates; Pigments)?
Our database includes 67 publications tagged with this CPC code.
Is patent activity under CPC C03C1/04 growing?
Publication counts under this code: 9 in 2024 vs 5 in 2025 (latest complete years).