by substitution of hydrogen atoms by nitro groups

by substitution of hydrogen atoms by nitro groups · 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 codeC07C201/08
Official titleby substitution of hydrogen atoms by nitro groups
Display labelby substitution of hydrogen atoms by nitro groups
Total patents118

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
201525
201617
201718
20188
20194
202013
20214
202211
20236
20246
20252
20264

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 C07C201/08?
CPC C07C201/08 is the Cooperative Patent Classification code for “by substitution of hydrogen atoms by nitro groups.”
How many patents are filed under CPC C07C201/08 (by substitution of hydrogen atoms by nitro groups)?
Our database includes 118 publications tagged with this CPC code.
Is patent activity under CPC C07C201/08 growing?
Publication counts under this code: 6 in 2024 vs 2 in 2025 (latest complete years).