Compounds containing nitrogen bound to oxygen

Compounds containing nitrogen bound to oxygen · 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 codeC08K5/32
Official titleCompounds containing nitrogen bound to oxygen
Display labelCompounds containing nitrogen bound to oxygen
Total patents274

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
201520
201626
201724
201825
201929
202040
202125
202224
202314
202430
202516
20261

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 C08K5/32?
CPC C08K5/32 is the Cooperative Patent Classification code for “Compounds containing nitrogen bound to oxygen.”
How many patents are filed under CPC C08K5/32 (Compounds containing nitrogen bound to oxygen)?
Our database includes 274 publications tagged with this CPC code.
Is patent activity under CPC C08K5/32 growing?
Publication counts under this code: 30 in 2024 vs 16 in 2025 (latest complete years).