- All sections
- D - Textilespaper
- D21D - Treatment of the materials before passing to the paper-making machine
- D21D 5/04 - Flat screens
Patent holdings for IPC class D21D 5/04
Total number of patents in this class: 31
10-year publication summary
|
1
|
5
|
2
|
3
|
1
|
3
|
3
|
2
|
2
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Voith Patent GmbH | 2754 |
13 |
| Kadant Lamort | 22 |
3 |
| Red Wire Oy | 5 |
3 |
| Andritz AG | 231 |
2 |
| PR Pulping Oy | 3 |
2 |
| Andritz Fiedler GmbH | 28 |
1 |
| CDE Global Limited | 77 |
1 |
| Primetals Technologies Germany GmbH | 199 |
1 |
| TamPulping Oy | 4 |
1 |
| Valmet Technologies Oy | 287 |
1 |
| GL&V USA Inc. | 5 |
1 |
| Suzano S.A. | 196 |
1 |
| Andritz China Ltd | 10 |
1 |
| Other owners | 0 |