PatentsDB

for envelopes with only one flap

for envelopes with only one flap · 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 codeB43M3/045
Official title{for envelopes with only one flap}
Display labelfor envelopes with only one flap
Total patents37

Filing trend

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

Filing activity over the last five years is rapidly growing.

Patents filed per year
YearPatents
20152
20166
20171
20182
20193
20201
20222
20236
20247
20257

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 B43M3/045?
CPC B43M3/045 is the Cooperative Patent Classification code for “for envelopes with only one flap.”
How many patents are filed under CPC B43M3/045 (for envelopes with only one flap)?
Our database includes 37 publications tagged with this CPC code.
Is patent activity under CPC B43M3/045 growing?
Publication counts under this code: 7 in 2024 vs 7 in 2025 (latest complete years).