- All sections
- D - Textilespaper
- D21D - Treatment of the materials before passing to the paper-making machine
- D21D 1/04 - Beater rolls or bars
Patent holdings for IPC class D21D 1/04
Total number of patents in this class: 1
10-year publication summary
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0
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0
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0
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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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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Fameccanica.Data S.p.A. | 228 |
1 |
| Other owners | 0 |