characterised by release liners

characterised by release liners · 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 codeC09J7/40
Official titlecharacterised by release liners
Display labelcharacterised by release liners
Total patents588

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
201644
201747
201854
201951
202064
202174
202263
202347
202459
202541
202611

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 C09J7/40?
CPC C09J7/40 is the Cooperative Patent Classification code for “characterised by release liners.”
How many patents are filed under CPC C09J7/40 (characterised by release liners)?
Our database includes 588 publications tagged with this CPC code.
Is patent activity under CPC C09J7/40 growing?
Publication counts under this code: 59 in 2024 vs 41 in 2025 (latest complete years).