Silica

Silica · 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 codeC04B41/5035
Official title{Silica}
Display labelSilica
Total patents163

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
20151
20169
201716
201810
201917
202014
202113
202217
202324
202416
202522
20264

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 C04B41/5035?
CPC C04B41/5035 is the Cooperative Patent Classification code for “Silica.”
How many patents are filed under CPC C04B41/5035 (Silica)?
Our database includes 163 publications tagged with this CPC code.
Is patent activity under CPC C04B41/5035 growing?
Publication counts under this code: 16 in 2024 vs 22 in 2025 (latest complete years).