Interior liners

Interior liners · Cooperative Patent Classification (CPC)

Separating, mixing, shaping, printing, and transporting materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeB64C1/066
Official title{Interior liners}
Display labelInterior liners
Total patents430

Filing trend

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

Filing activity over the last five years is rapidly declining.

Patents filed per year
YearPatents
201537
201633
201760
201848
201945
202057
202145
202218
202336
202426
202517
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 B64C1/066?
CPC B64C1/066 is the Cooperative Patent Classification code for “Interior liners.”
How many patents are filed under CPC B64C1/066 (Interior liners)?
Our database includes 430 publications tagged with this CPC code.
Is patent activity under CPC B64C1/066 growing?
Publication counts under this code: 26 in 2024 vs 17 in 2025 (latest complete years).