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for breaking vacuum seals between lids or covers and bodies of preserving jars, e.g. by wedge action

for breaking vacuum seals between lids or covers and bodies of preserving jars, e.g. by wedge action · Cooperative Patent Classification (CPC)

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

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
Metric	Value
CPC code	B67B7/20
Official title	for breaking vacuum seals between lids or covers and bodies of preserving jars, e.g. by wedge action
Display label	for breaking vacuum seals between lids or covers and bodies of preserving jars, e.g. by wedge action
Total patents	2

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

Filing activity appears stable based on the most recent years.

Patents filed per year
Year	Patents
2016	1
2025	1

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