Weakened closure seams

Weakened closure seams · 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 codeB65D77/38
Official titleWeakened closure seams
Display labelWeakened closure seams
Total patents44

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
20153
20164
20175
20187
20196
20205
20214
20225
20232
20243

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 B65D77/38?
CPC B65D77/38 is the Cooperative Patent Classification code for “Weakened closure seams.”
How many patents are filed under CPC B65D77/38 (Weakened closure seams)?
Our database includes 44 publications tagged with this CPC code.
Is patent activity under CPC B65D77/38 growing?
Publication counts under this code: 2 in 2023 vs 3 in 2024 (latest complete years).