of carbon dioxide

of carbon dioxide · 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 codeC25B3/26
Official titleof carbon dioxide
Display labelof carbon dioxide
Total patents618

Filing trend

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

Filing activity over the last five years is rapidly growing.

Patents filed per year
YearPatents
20157
20165
201712
201812
201926
202027
202158
202280
202387
2024135
2025135
202634

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 C25B3/26?
CPC C25B3/26 is the Cooperative Patent Classification code for “of carbon dioxide.”
How many patents are filed under CPC C25B3/26 (of carbon dioxide)?
Our database includes 618 publications tagged with this CPC code.
Is patent activity under CPC C25B3/26 growing?
Publication counts under this code: 135 in 2024 vs 135 in 2025 (latest complete years).