Nitrogen atoms (nitro radicals C07D211/38)

Nitrogen atoms (nitro radicals C07D211/38) · 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 codeC07D211/56
Official titleNitrogen atoms (nitro radicals C07D211/38)
Display labelNitrogen atoms (nitro radicals C07D211/38)
Total patents216

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
201524
201619
201723
201818
201923
202014
202121
202222
202316
202416
202517
20263

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 C07D211/56?
CPC C07D211/56 is the Cooperative Patent Classification code for “Nitrogen atoms (nitro radicals C07D211/38).”
How many patents are filed under CPC C07D211/56 (Nitrogen atoms (nitro radicals C07D211/38))?
Our database includes 216 publications tagged with this CPC code.
Is patent activity under CPC C07D211/56 growing?
Publication counts under this code: 16 in 2024 vs 17 in 2025 (latest complete years).