- 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: 43
10-year publication summary
|
4
|
3
|
5
|
6
|
6
|
3
|
1
|
3
|
0
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Voith Patent GmbH | 2741 |
10 |
| The Procter & Gamble Company | 21852 |
5 |
| International Paper Company | 598 |
3 |
| UPM-Kymmene Corporation | 1005 |
3 |
| Domtar Paper Company, LLC | 123 |
2 |
| Seiko Epson Corporation | 20337 |
1 |
| Buckman Laboratories International, Inc. | 240 |
1 |
| Centre de Recherche Industrielle du Quebec | 43 |
1 |
| Coatex S.A.S. | 209 |
1 |
| delfortgroup AG | 156 |
1 |
| First Quality Tissue, LLC | 166 |
1 |
| Hubei Jinhanjiang Refined Cotton Co., Ltd. | 12 |
1 |
| J. Rettenmaier & Sohne GmbH & Co KG | 77 |
1 |
| Kemira Oyj | 1264 |
1 |
| Mondi AG | 216 |
1 |
| Nippon Paper Industries Co., Ltd. | 851 |
1 |
| Valmet AB | 556 |
1 |
| Valmet Technologies Oy | 288 |
1 |
| WestRock MWV, LLC | 329 |
1 |
| GL&V USA Inc. | 4 |
1 |
| Other owners | 5 |