in a reactive atmosphere, e.g. oxidising or reducing atmosphere (C23C2/024 takes precedence)

in a reactive atmosphere, e.g. oxidising or reducing atmosphere (C23C2/024 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 codeC23C2/0222
Official title{in a reactive atmosphere, e.g. oxidising or reducing atmosphere (C23C2/024 takes precedence)}
Display labelin a reactive atmosphere, e.g. oxidising or reducing atmosphere (C23C2/024 takes precedence)
Total patents297

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
201523
201627
201727
201830
201914
202031
202118
202231
202334
202422
202529
202611

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 C23C2/0222?
CPC C23C2/0222 is the Cooperative Patent Classification code for “in a reactive atmosphere, e.g. oxidising or reducing atmosphere (C23C2/024 takes precedence).”
How many patents are filed under CPC C23C2/0222 (in a reactive atmosphere, e.g. oxidising or reducing atmosphere (C23C2/024 takes precedence))?
Our database includes 297 publications tagged with this CPC code.
Is patent activity under CPC C23C2/0222 growing?
Publication counts under this code: 22 in 2024 vs 29 in 2025 (latest complete years).