- All sections
- B - Performing operations; transporting
- B31F - Mechanical working or deformation of paper, cardboard or material worked in a manner analogous to paper
- B31F 1/32 - Corrugating already corrugated webs
Patent holdings for IPC class B31F 1/32
Total number of patents in this class: 10
10-year publication summary
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0
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0
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1
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0
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1
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1
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0
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0
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0
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2
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| International Paper Company | 857 |
3 |
| Mitsubishi Heavy Industries Machinery Systems, Ltd. | 422 |
2 |
| Corcel IP Limited | 19 |
1 |
| Qingdao Meiguang Machinery Co., Ltd. | 3 |
1 |
| Barry-Wehmiller Papersystems, Inc. | 19 |
1 |
| Grifal S.p.A. | 10 |
1 |
| Intpro, LLC | 21 |
1 |
| Other owners | 0 |