Silicates other than clay, e.g. water glass

Silicates other than clay, e.g. water glass · 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 codeC04B2235/3427
Official titleSilicates other than clay, e.g. water glass
Display labelSilicates other than clay, e.g. water glass
Total patents306

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
201526
201626
201735
201832
201929
202025
202123
202237
202324
202422
202525
20262

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 C04B2235/3427?
CPC C04B2235/3427 is the Cooperative Patent Classification code for “Silicates other than clay, e.g. water glass.”
How many patents are filed under CPC C04B2235/3427 (Silicates other than clay, e.g. water glass)?
Our database includes 306 publications tagged with this CPC code.
Is patent activity under CPC C04B2235/3427 growing?
Publication counts under this code: 22 in 2024 vs 25 in 2025 (latest complete years).