Opacifiers

Opacifiers · 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 codeC04B2103/56
Official titleOpacifiers
Display labelOpacifiers
Total patents27

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
20151
20163
20171
20181
20192
20202
20215
20223
20233
20243
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 C04B2103/56?
CPC C04B2103/56 is the Cooperative Patent Classification code for “Opacifiers.”
How many patents are filed under CPC C04B2103/56 (Opacifiers)?
Our database includes 27 publications tagged with this CPC code.
Is patent activity under CPC C04B2103/56 growing?
Publication counts under this code: 3 in 2024 vs 3 in 2025 (latest complete years).