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the carbon skeleton being further substituted by nitrogen atoms, not being part of nitro or nitroso groups

the carbon skeleton being further substituted by nitrogen atoms, not being part of 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 codeC07C323/57
Official titlethe carbon skeleton being further substituted by nitrogen atoms, not being part of nitro or nitroso groups
Display labelthe carbon skeleton being further substituted by nitrogen atoms, not being part of nitro or nitroso groups
Total patents16

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
20151
20163
20171
20182
20191
20201
20211
20234
20241
20251

Representative patents

Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.