removable or interchangeable

removable or interchangeable · 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 codeB65H31/22
Official titleremovable or interchangeable
Display labelremovable or interchangeable
Total patents311

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
201526
201631
201734
201833
201938
202021
202124
202227
202329
202433
202512
20263

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 B65H31/22?
CPC B65H31/22 is the Cooperative Patent Classification code for “removable or interchangeable.”
How many patents are filed under CPC B65H31/22 (removable or interchangeable)?
Our database includes 311 publications tagged with this CPC code.
Is patent activity under CPC B65H31/22 growing?
Publication counts under this code: 33 in 2024 vs 12 in 2025 (latest complete years).