Process for manufacturing bags
US-11931984-B2 · Mar 19, 2024 · US
Making flexible containers, e.g. envelopes or bags
Making flexible containers, e.g. envelopes or bags · 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 | B31B70/00 |
| Official title | Making flexible containers, e.g. envelopes or bags |
| Display label | Making flexible containers, e.g. envelopes or bags |
| Total patents | 113 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 12 |
| 2016 | 14 |
| 2017 | 24 |
| 2018 | 12 |
| 2019 | 8 |
| 2020 | 9 |
| 2021 | 12 |
| 2022 | 8 |
| 2023 | 4 |
| 2024 | 6 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Flexible packages with self-folding
US-2018339822-A1 · Nov 29, 2018 · US
Packaging unit for hygiene articles and a method of forming a packaging unit
US-10086989-B2 · Oct 2, 2018 · US
Reclosable pouch with leakproof closure and method of manufacture
US-10065387-B2 · Sep 4, 2018 · US
Sheet Product Stacking and Feeding Apparatus
US-2018237250-A1 · Aug 23, 2018 · US
Comfort layer for a collecting bag
US-10045878-B2 · Aug 14, 2018 · US
Draw tape bag
US-10023361-B2 · Jul 17, 2018 · US
Multi-cell sealed container
US-9987194-B2 · Jun 5, 2018 · US
Film for urostomy pouch baffle and pouch using same
US-9962282-B2 · May 8, 2018 · US
Pocketed article and method of making the same
US-2018111328-A1 · Apr 26, 2018 · US
Sack and method for producing a sack
US-2017361994-A1 · Dec 21, 2017 · US
Plant for manufacturing bags from two layers of plastic film, method for operating such a plant and bag
US-2017341311-A1 · Nov 30, 2017 · US
Packaging unit having improved sealing and a method of forming a packaging unit having improved sealing
US-9821940-B2 · Nov 21, 2017 · US
Draw tape bag
US-2017320634-A1 · Nov 9, 2017 · US
Flexible containers having improved seam and methods of making the same
US-2017313495-A1 · Nov 2, 2017 · US
Appartus for, and method of, producing a bag from paper, and paper bag
US-9802378-B2 · Oct 31, 2017 · US
Method and apparatus for deep-drawing a tray from sheet material
US-2017305097-A1 · Oct 26, 2017 · US
Point of sale envelopes and methods of manufacturing the same
US-9738419-B2 · Aug 22, 2017 · US
Flexible containers having improved seam and methods of making the same
US-9731889-B2 · Aug 15, 2017 · US
System and process for making a pouch or container
US-2017203531-A1 · Jul 20, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B31B70/00?
- CPC B31B70/00 is the Cooperative Patent Classification code for “Making flexible containers, e.g. envelopes or bags.”
- How many patents are filed under CPC B31B70/00 (Making flexible containers, e.g. envelopes or bags)?
- Our database includes 113 publications tagged with this CPC code.
- Is patent activity under CPC B31B70/00 growing?
- Publication counts under this code: 6 in 2024 vs 4 in 2025 (latest complete years).