What is CPC B65D5/541?

CPC B65D5/541 is the Cooperative Patent Classification code for “the lines of weakness being provided in one or more closure flaps.”

How many patents are filed under CPC B65D5/541 (the lines of weakness being provided in one or more closure flaps)?

Our database includes 150 publications tagged with this CPC code.

Publication counts under this code: 13 in 2024 vs 6 in 2025 (latest complete years).

the lines of weakness being provided in one or more closure flaps · Cooperative Patent Classification (CPC)

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

Mapped technology topics for this CPC code.

CPC classification statistics
Metric	Value
CPC code	B65D5/541
Official title	{the lines of weakness being provided in one or more closure flaps}
Display label	the lines of weakness being provided in one or more closure flaps
Total patents	150

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

Filing activity over the last five years is rapidly declining.

Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.

Answers are generated from the same data shown on this page.

What is CPC B65D5/541?: CPC B65D5/541 is the Cooperative Patent Classification code for “the lines of weakness being provided in one or more closure flaps.”
How many patents are filed under CPC B65D5/541 (the lines of weakness being provided in one or more closure flaps)?: Our database includes 150 publications tagged with this CPC code.
Is patent activity under CPC B65D5/541 growing?: Publication counts under this code: 13 in 2024 vs 6 in 2025 (latest complete years).