Conformable corrugated mailer
US-2021078767-A1 · Mar 18, 2021 · US
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Lines of weakness
Lines of weakness · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B65D27/34 |
| Official title | Lines of weakness |
| Display label | Lines of weakness |
| Total patents | 6 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 2 |
| 2018 | 1 |
| 2021 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Tear-open pouch for fragile thin materials
US-10071833-B2 · Sep 11, 2018 · US
Sealed letter producing device and envelope sheet
US-9833965-B2 · Dec 5, 2017 · US
Protective Means For Protecting Imaging Media
US-2017131626-A1 · May 11, 2017 · US
Protective means for protecting imaging media
US-9529248-B2 · Dec 27, 2016 · US
Tear-Open Pouch for Fragile Thin Materials
US-2015353237-A1 · Dec 10, 2015 · US