combined with specific additives

combined with specific additives · 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 codeC11D3/3902
Official title{combined with specific additives}
Display labelcombined with specific additives
Total patents88

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
20157
20166
20178
20182
20196
20205
202112
20228
202310
202412
20259
20263

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 C11D3/3902?
CPC C11D3/3902 is the Cooperative Patent Classification code for “combined with specific additives.”
How many patents are filed under CPC C11D3/3902 (combined with specific additives)?
Our database includes 88 publications tagged with this CPC code.
Is patent activity under CPC C11D3/3902 growing?
Publication counts under this code: 12 in 2024 vs 9 in 2025 (latest complete years).