in a direct manner, e.g. direct copper bonding [DCB]

in a direct manner, e.g. direct copper bonding [DCB] · 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 codeC04B37/021
Official title{in a direct manner, e.g. direct copper bonding [DCB]}
Display labelin a direct manner, e.g. direct copper bonding [DCB]
Total patents312

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
201523
201631
201730
201821
201920
202037
202134
202223
202326
202432
202531
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 C04B37/021?
CPC C04B37/021 is the Cooperative Patent Classification code for “in a direct manner, e.g. direct copper bonding [DCB].”
How many patents are filed under CPC C04B37/021 (in a direct manner, e.g. direct copper bonding [DCB])?
Our database includes 312 publications tagged with this CPC code.
Is patent activity under CPC C04B37/021 growing?
Publication counts under this code: 32 in 2024 vs 31 in 2025 (latest complete years).