Bag making apparatus and bag making method
US-12454113-B2 · Oct 28, 2025 · US
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by high-frequency electric heating
by high-frequency electric heating · 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 | B31B70/66 |
| Official title | by high-frequency electric heating |
| Display label | by high-frequency electric heating |
| Total patents | 13 |
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 | 2 |
| 2016 | 1 |
| 2017 | 1 |
| 2020 | 3 |
| 2022 | 1 |
| 2023 | 3 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Bag making method
US-12011898-B2 · Jun 18, 2024 · US
Bag making machine and bag making method
US-11731387-B2 · Aug 22, 2023 · US
Bag making method
US-2023256698-A1 · Aug 17, 2023 · US
Bag making apparatus and bag making method
US-2023166476-A1 · Jun 1, 2023 · US
Bag making machine and bag making method
US-2022242080-A1 · Aug 4, 2022 · US
Method and system for manufacturing medical pouches
US-10703576-B2 · Jul 7, 2020 · US
Flexible container with fitment and process for producing same
US-2020165015-A1 · May 28, 2020 · US
Flexible container with fitment and process for producing same
US-10589882-B2 · Mar 17, 2020 · US
Method and system for manufacturing medical pouches
US-2017239906-A1 · Aug 24, 2017 · US
Flexible Container with Fitment and Process for Producing Same
US-2016016679-A1 · Jan 21, 2016 · US
Process of fusion-bonding plastic film and drug bag
US-9216554-B2 · Dec 22, 2015 · US
Container formed from a roll and having improved opening properties as a result of stretching heat treatment of polymer layers
US-9073280-B2 · Jul 7, 2015 · US