Purification (C12M47/04 takes precedence)

Purification (C12M47/04 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 codeC12M47/12
Official title{Purification (C12M47/04 takes precedence)}
Display labelPurification (C12M47/04 takes precedence)
Total patents237

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
201518
201613
201716
201812
201917
202021
202125
202231
202326
202424
202528
20266

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 C12M47/12?
CPC C12M47/12 is the Cooperative Patent Classification code for “Purification (C12M47/04 takes precedence).”
How many patents are filed under CPC C12M47/12 (Purification (C12M47/04 takes precedence))?
Our database includes 237 publications tagged with this CPC code.
Is patent activity under CPC C12M47/12 growing?
Publication counts under this code: 24 in 2024 vs 28 in 2025 (latest complete years).