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 codeC07C323/63
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 patents69

Filing trend

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

Filing activity over the last five years is rapidly growing.

Patents filed per year
YearPatents
20156
201615
201712
20187
20198
20203
20212
20235
20244
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 C07C323/63?
CPC C07C323/63 is the Cooperative Patent Classification code for “the carbon skeleton being further substituted by nitrogen atoms, not being part of nitro or nitroso groups.”
How many patents are filed under CPC C07C323/63 (the carbon skeleton being further substituted by nitrogen atoms, not being part of nitro or nitroso groups)?
Our database includes 69 publications tagged with this CPC code.
Is patent activity under CPC C07C323/63 growing?
Publication counts under this code: 4 in 2024 vs 7 in 2025 (latest complete years).