involving pretreatment of the surfaces to be joined

involving pretreatment of the surfaces to be joined · 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 codeC09J5/02
Official titleinvolving pretreatment of the surfaces to be joined
Display labelinvolving pretreatment of the surfaces to be joined
Total patents567

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
201632
201751
201862
201959
202062
202161
202248
202350
202459
202537
202613

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 C09J5/02?
CPC C09J5/02 is the Cooperative Patent Classification code for “involving pretreatment of the surfaces to be joined.”
How many patents are filed under CPC C09J5/02 (involving pretreatment of the surfaces to be joined)?
Our database includes 567 publications tagged with this CPC code.
Is patent activity under CPC C09J5/02 growing?
Publication counts under this code: 59 in 2024 vs 37 in 2025 (latest complete years).