to introduce in the glass such metals or metallic ions as Ag, Cu

to introduce in the glass such metals or metallic ions as Ag, Cu · 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 codeC03C21/005
Official title{to introduce in the glass such metals or metallic ions as Ag, Cu}
Display labelto introduce in the glass such metals or metallic ions as Ag, Cu
Total patents231

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
201515
201615
201737
201821
201934
202026
202115
202225
202316
202412
202514
20261

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 C03C21/005?
CPC C03C21/005 is the Cooperative Patent Classification code for “to introduce in the glass such metals or metallic ions as Ag, Cu.”
How many patents are filed under CPC C03C21/005 (to introduce in the glass such metals or metallic ions as Ag, Cu)?
Our database includes 231 publications tagged with this CPC code.
Is patent activity under CPC C03C21/005 growing?
Publication counts under this code: 12 in 2024 vs 14 in 2025 (latest complete years).