the carbon skeleton containing rings

the carbon skeleton containing rings · 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 codeC07C251/80
Official titlethe carbon skeleton containing rings
Display labelthe carbon skeleton containing rings
Total patents29

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
20152
20165
20175
20181
20191
20204
20212
20225
20232
20241
20251

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 C07C251/80?
CPC C07C251/80 is the Cooperative Patent Classification code for “the carbon skeleton containing rings.”
How many patents are filed under CPC C07C251/80 (the carbon skeleton containing rings)?
Our database includes 29 publications tagged with this CPC code.
Is patent activity under CPC C07C251/80 growing?
Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).