by reduction in solid state, e.g. by segregation processes

by reduction in solid state, e.g. by segregation processes · 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 codeC22B23/021
Official title{by reduction in solid state, e.g. by segregation processes}
Display labelby reduction in solid state, e.g. by segregation processes
Total patents54

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
20155
20161
20176
20186
20192
20204
20214
20222
20237
202411
20254
20262

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 C22B23/021?
CPC C22B23/021 is the Cooperative Patent Classification code for “by reduction in solid state, e.g. by segregation processes.”
How many patents are filed under CPC C22B23/021 (by reduction in solid state, e.g. by segregation processes)?
Our database includes 54 publications tagged with this CPC code.
Is patent activity under CPC C22B23/021 growing?
Publication counts under this code: 11 in 2024 vs 4 in 2025 (latest complete years).