- All sections
- D - Textilespaper
- D21D - Treatment of the materials before passing to the paper-making machine
- D21D 1/24 - Jordan rolls
Patent holdings for IPC class D21D 1/24
Total number of patents in this class: 15
10-year publication summary
|
1
|
0
|
1
|
1
|
0
|
3
|
3
|
2
|
1
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Valmet Technologies Oy | 288 |
5 |
| Andritz Inc. | 332 |
4 |
| Valmet Technologies, Inc. | 147 |
3 |
| Metso Paper, Inc. | 422 |
1 |
| Valmet AB | 505 |
1 |
| Voith Patent GmbH | 2759 |
1 |
| Other owners | 0 |