alkali metal silicates

alkali metal silicates · 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 codeC09D1/02
Official titlealkali metal silicates
Display labelalkali metal silicates
Total patents155

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
201511
201612
20177
201813
201911
202018
202119
202218
202317
202414
202511
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 C09D1/02?
CPC C09D1/02 is the Cooperative Patent Classification code for “alkali metal silicates.”
How many patents are filed under CPC C09D1/02 (alkali metal silicates)?
Our database includes 155 publications tagged with this CPC code.
Is patent activity under CPC C09D1/02 growing?
Publication counts under this code: 14 in 2024 vs 11 in 2025 (latest complete years).