Coupling reactions

Coupling reactions · 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 codeC25B3/29
Official titleCoupling reactions
Display labelCoupling reactions
Total patents149

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
20153
201612
201714
201813
201914
202012
20218
202214
202312
202418
202521
20268

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 C25B3/29?
CPC C25B3/29 is the Cooperative Patent Classification code for “Coupling reactions.”
How many patents are filed under CPC C25B3/29 (Coupling reactions)?
Our database includes 149 publications tagged with this CPC code.
Is patent activity under CPC C25B3/29 growing?
Publication counts under this code: 18 in 2024 vs 21 in 2025 (latest complete years).