containing oxygen

containing 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 codeC08J9/0023
Official title{containing oxygen}
Display labelcontaining oxygen
Total patents590

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
201547
201646
201746
201868
201961
202055
202155
202264
202349
202457
202535
20267

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 C08J9/0023?
CPC C08J9/0023 is the Cooperative Patent Classification code for “containing oxygen.”
How many patents are filed under CPC C08J9/0023 (containing oxygen)?
Our database includes 590 publications tagged with this CPC code.
Is patent activity under CPC C08J9/0023 growing?
Publication counts under this code: 57 in 2024 vs 35 in 2025 (latest complete years).