the carbon skeleton being further substituted by halogen atoms, or by nitro or nitroso groups

the carbon skeleton being further substituted by halogen atoms, or by nitro or nitroso 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 codeC07C255/35
Official titlethe carbon skeleton being further substituted by halogen atoms, or by nitro or nitroso groups
Display labelthe carbon skeleton being further substituted by halogen atoms, or by nitro or nitroso groups
Total patents62

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
20157
20161
20174
20187
20192
20206
20217
20221
202316
20245
20255
20261

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 C07C255/35?
CPC C07C255/35 is the Cooperative Patent Classification code for “the carbon skeleton being further substituted by halogen atoms, or by nitro or nitroso groups.”
How many patents are filed under CPC C07C255/35 (the carbon skeleton being further substituted by halogen atoms, or by nitro or nitroso groups)?
Our database includes 62 publications tagged with this CPC code.
Is patent activity under CPC C07C255/35 growing?
Publication counts under this code: 5 in 2024 vs 5 in 2025 (latest complete years).