one oxygen and one nitrogen atom, e.g. guanine

one oxygen and one nitrogen atom, e.g. guanine · 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 codeC07D473/18
Official titleone oxygen and one nitrogen atom, e.g. guanine
Display labelone oxygen and one nitrogen atom, e.g. guanine
Total patents299

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
201533
201622
201716
201837
201946
202043
202130
202219
202315
202413
202520
20265

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 C07D473/18?
CPC C07D473/18 is the Cooperative Patent Classification code for “one oxygen and one nitrogen atom, e.g. guanine.”
How many patents are filed under CPC C07D473/18 (one oxygen and one nitrogen atom, e.g. guanine)?
Our database includes 299 publications tagged with this CPC code.
Is patent activity under CPC C07D473/18 growing?
Publication counts under this code: 13 in 2024 vs 20 in 2025 (latest complete years).