Nitrogen atoms (nitro radicals C07D213/61)

Nitrogen atoms (nitro radicals C07D213/61) · 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 codeC07D213/72
Official titleNitrogen atoms (nitro radicals C07D213/61)
Display labelNitrogen atoms (nitro radicals C07D213/61)
Total patents147

Filing trend

Year-over-year patent counts classified under this CPC code.

Filing activity over the last five years is declining.

Patents filed per year
YearPatents
201526
201612
201717
201819
201914
202014
202114
20227
20239
20248
20257

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 C07D213/72?
CPC C07D213/72 is the Cooperative Patent Classification code for “Nitrogen atoms (nitro radicals C07D213/61).”
How many patents are filed under CPC C07D213/72 (Nitrogen atoms (nitro radicals C07D213/61))?
Our database includes 147 publications tagged with this CPC code.
Is patent activity under CPC C07D213/72 growing?
Publication counts under this code: 8 in 2024 vs 7 in 2025 (latest complete years).