- All sections
- B - Performing operationstransporting
- B31B - Making containers of paper, cardboard or material worked in a manner analogous to paper
- B31B 23/74 - Machinery characterised by making rectangular envelopes or bags of flat form, i.e. without structural provision at the base for thickness of contents, from webs, e.g. from flattened tubular webs and having means for effecting auxiliary operations
Patent holdings for IPC class B31B 23/74
Total number of patents in this class: 8
10-year publication summary
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Idemitsu Unitech Co., Ltd. | 193 |
2 |
| KIEFEL GmbH | 155 |
1 |
| Mitsubishi Heavy Industries Food & Packaging Machinery Co., Ltd. | 13 |
1 |
| OneWorld Corporation | 11 |
1 |
| Toyo Seikan Kaisha, Ltd. | 287 |
1 |
| Garutsu Co., Ltd. | 2 |
1 |
| Asahipac Corporation | 1 |
1 |
| Other owners | 0 |