- All sections
- D - Textilespaper
- D21G - Calendersaccessories for paper-making machines
- D21G 1/02 - RollsTheir bearings
Patent holdings for IPC class D21G 1/02
Total number of patents in this class: 235
10-year publication summary
|
15
|
12
|
10
|
6
|
10
|
14
|
20
|
7
|
12
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Voith Patent GmbH | 2756 |
75 |
| Metso Paper, Inc. | 426 |
37 |
| Stowe Woodward Licensco, LLC | 52 |
15 |
| Andritz Kusters GmbH | 56 |
13 |
| Futura S.p.A. | 139 |
7 |
| Kimberly-clark Worldwide, Inc. | 5502 |
5 |
| Ing. Gerritse Holding B.V. | 6 |
5 |
| Valmet Technologies Oy | 287 |
4 |
| Andritz AG | 232 |
3 |
| Stowe Woodward, L.L.C. | 11 |
3 |
| GTK Timek Group SA | 10 |
3 |
| Seiko Epson Corporation | 19296 |
2 |
| Aalto University Foundation | 292 |
2 |
| Schaeffler KG | 738 |
2 |
| Schafer Composites GmbH | 3 |
2 |
| SchäferRolls GmbH & Co. KG | 5 |
2 |
| WestRock MWV, LLC | 339 |
2 |
| Suominen Oyj | 9 |
2 |
| Matthews International GmbH | 51 |
2 |
| Siemens AG | 24552 |
1 |
| Other owners | 48 |