containing two hetero rings

containing two hetero 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 codeC07D403/02
Official titlecontaining two hetero rings
Display labelcontaining two hetero rings
Total patents104

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
20159
201612
201715
20188
201918
202011
20216
20224
202312
20246
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 C07D403/02?
CPC C07D403/02 is the Cooperative Patent Classification code for “containing two hetero rings.”
How many patents are filed under CPC C07D403/02 (containing two hetero rings)?
Our database includes 104 publications tagged with this CPC code.
Is patent activity under CPC C07D403/02 growing?
Publication counts under this code: 6 in 2024 vs 3 in 2025 (latest complete years).