- All sections
- D - Textilespaper
- D21D - Treatment of the materials before passing to the paper-making machine
- D21D 99/00 - Subject matter not provided for in other groups of this subclass
Patent holdings for IPC class D21D 99/00
Total number of patents in this class: 41
10-year publication summary
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3
|
4
|
3
|
5
|
6
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6
|
3
|
1
|
3
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Voith Patent GmbH | 2756 |
10 |
| The Procter & Gamble Company | 22037 |
5 |
| International Paper Company | 791 |
3 |
| Domtar Paper Company, LLC | 121 |
2 |
| Nippon Paper Industries Co., Ltd. | 829 |
2 |
| UPM-Kymmene Corporation | 937 |
2 |
| WestRock MWV, LLC | 340 |
2 |
| Papierholz Austria GmbH | 8 |
2 |
| Seiko Epson Corporation | 19319 |
1 |
| Buckman Laboratories International, Inc. | 235 |
1 |
| Centre de Recherche Industrielle du Quebec | 50 |
1 |
| Coatex S.A.S. | 227 |
1 |
| delfortgroup AG | 150 |
1 |
| First Quality Tissue, LLC | 156 |
1 |
| J. Rettenmaier & Sohne GmbH & Co KG | 76 |
1 |
| Kemira Oyj | 1207 |
1 |
| Valmet AB | 503 |
1 |
| Valmet Technologies Oy | 287 |
1 |
| GL&V USA Inc. | 5 |
1 |
| PE Beskidy Społka z o.o. Społka komandytowa | 1 |
1 |
| Other owners | 1 |