containing Ni (C21D6/004 takes precedence)

containing Ni (C21D6/004 takes precedence) · 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 codeC21D6/001
Official title{containing Ni (C21D6/004 takes precedence)}
Display labelcontaining Ni (C21D6/004 takes precedence)
Total patents694

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
201543
201635
201743
201855
201951
202068
202155
202282
202354
202488
202594
202626

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 C21D6/001?
CPC C21D6/001 is the Cooperative Patent Classification code for “containing Ni (C21D6/004 takes precedence).”
How many patents are filed under CPC C21D6/001 (containing Ni (C21D6/004 takes precedence))?
Our database includes 694 publications tagged with this CPC code.
Is patent activity under CPC C21D6/001 growing?
Publication counts under this code: 88 in 2024 vs 94 in 2025 (latest complete years).