one layer being formed of an iron alloy or steel, another layer being formed of aluminium or an aluminium alloy

one layer being formed of an iron alloy or steel, another layer being formed of aluminium or an aluminium alloy · Cooperative Patent Classification (CPC)

Separating, mixing, shaping, printing, and transporting materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeB32B15/012
Official title{one layer being formed of an iron alloy or steel, another layer being formed of aluminium or an aluminium alloy}
Display labelone layer being formed of an iron alloy or steel, another layer being formed of aluminium or an aluminium alloy
Total patents976

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
201536
201644
201746
201862
201970
2020100
2021104
2022112
2023114
2024100
2025146
202642

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 B32B15/012?
CPC B32B15/012 is the Cooperative Patent Classification code for “one layer being formed of an iron alloy or steel, another layer being formed of aluminium or an aluminium alloy.”
How many patents are filed under CPC B32B15/012 (one layer being formed of an iron alloy or steel, another layer being formed of aluminium or an aluminium alloy)?
Our database includes 976 publications tagged with this CPC code.
Is patent activity under CPC B32B15/012 growing?
Publication counts under this code: 100 in 2024 vs 146 in 2025 (latest complete years).