- All sections
- D - Textilespaper
- D21F - Paper-making machinesmethods of producing paper thereon
- D21F 1/76 - Pulp catching, de-watering, or recoveringRe-use of pulp-water using cylinders with suction
Patent holdings for IPC class D21F 1/76
Total number of patents in this class: 8
10-year publication summary
|
2
|
1
|
0
|
2
|
0
|
0
|
0
|
0
|
1
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Andritz AG | 233 |
2 |
| Andritz Oy | 284 |
2 |
| The Procter & Gamble Company | 22043 |
1 |
| Valmet AB | 508 |
1 |
| Valmet Technologies, Inc. | 146 |
1 |
| Voith Patent GmbH | 2762 |
1 |
| Other owners | 0 |