- 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: 9
10-year publication summary
|
1
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0
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2
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0
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0
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0
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0
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1
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0
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1
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Andritz AG | 244 |
3 |
| Andritz Oy | 294 |
2 |
| The Procter & Gamble Company | 21861 |
1 |
| Valmet AB | 553 |
1 |
| Valmet Technologies, Inc. | 136 |
1 |
| Voith Patent GmbH | 2752 |
1 |
| Other owners | 0 |