containing three- or four-membered rings

containing three- or four-membered 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 codeC07C2603/62
Official titlecontaining three- or four-membered rings
Display labelcontaining three- or four-membered rings
Total patents39

Filing trend

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

Filing activity over the last five years is rapidly declining.

Patents filed per year
YearPatents
20151
20163
20173
20182
20194
20206
20218
20224
20232
20243
20253

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 C07C2603/62?
CPC C07C2603/62 is the Cooperative Patent Classification code for “containing three- or four-membered rings.”
How many patents are filed under CPC C07C2603/62 (containing three- or four-membered rings)?
Our database includes 39 publications tagged with this CPC code.
Is patent activity under CPC C07C2603/62 growing?
Publication counts under this code: 3 in 2024 vs 3 in 2025 (latest complete years).