Devices for conveying sheets through printing apparatus or machines (through platen presses B41F1/28)

Devices for conveying sheets through printing apparatus or machines (through platen presses B41F1/28) · 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 codeB41F21/00
Official titleDevices for conveying sheets through printing apparatus or machines (through platen presses B41F1/28)
Display labelDevices for conveying sheets through printing apparatus or machines (through platen presses B41F1/28)
Total patents131

Filing trend

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

Filing activity over the last five years is growing.

Patents filed per year
YearPatents
201513
201613
201719
201821
201913
202013
20219
202211
20232
20246
202511

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 B41F21/00?
CPC B41F21/00 is the Cooperative Patent Classification code for “Devices for conveying sheets through printing apparatus or machines (through platen presses B41F1/28).”
How many patents are filed under CPC B41F21/00 (Devices for conveying sheets through printing apparatus or machines (through platen presses B41F1/28))?
Our database includes 131 publications tagged with this CPC code.
Is patent activity under CPC B41F21/00 growing?
Publication counts under this code: 6 in 2024 vs 11 in 2025 (latest complete years).