- All sections
- B - Performing operationstransporting
- B31F - Mechanical working or deformation of paper, cardboard or material worked in a manner analogous to paper
- B31F 1/28 - Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders combined with uniting the corrugated webs to flat webs
Patent holdings for IPC class B31F 1/28
Total number of patents in this class: 295
10-year publication summary
|
37
|
22
|
31
|
23
|
22
|
21
|
20
|
32
|
25
|
17
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BHS Corrugated Maschinen-und Anlagenbau GmbH | 218 |
69 |
| Fosber S.p.A. | 58 |
27 |
| Mitsubishi Heavy Industries Machinery Systems, Ltd. | 497 |
20 |
| Intpro, LLC | 23 |
13 |
| Packaging Acquisitions I, LLC | 20 |
11 |
| Kabushiki Kaisha Isowa | 28 |
6 |
| Mondi AG | 234 |
6 |
| PAC Worldwide Corporation | 68 |
6 |
| Georgia-Pacific Corrugated LLC | 89 |
5 |
| Progroup AG | 11 |
5 |
| Henkel AG & Co. KGaA | 10803 |
4 |
| Adalis Corporation | 12 |
4 |
| Bobst Mex SA | 612 |
4 |
| Borregaard AS | 126 |
4 |
| Quantumcorrugated S.r.l. | 19 |
4 |
| BASF SE | 21334 |
3 |
| The Glad Products Company | 478 |
3 |
| Scorrboard, LLC | 8 |
3 |
| Valmet Automation Oy | 113 |
3 |
| Guangdong Fosber Intelligent Equipment Co., Ltd. | 10 |
3 |
| Other owners | 92 |