- All sections
- D - Textilespaper
- D21H - Pulp compositionspreparation thereof not covered by subclasses , impregnating or coating of papertreatment of finished paper not covered by class or subclass paper not otherwise provided for
- D21H 25/06 - Physical treatment, e.g. heating or irradiating of impregnated or coated paper
Patent holdings for IPC class D21H 25/06
Total number of patents in this class: 143
10-year publication summary
|
8
|
12
|
9
|
13
|
7
|
9
|
10
|
9
|
12
|
16
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Stora Enso Oyj | 1658 |
7 |
| BASF SE | 21017 |
5 |
| Société des Produits Nestlé S.A. | 9330 |
4 |
| Kemira Oyj | 1216 |
4 |
| University of Southampton | 445 |
4 |
| Vits Technology GmbH | 18 |
4 |
| Cellulotech Inc | 8 |
4 |
| Technische Universitat Darmstadt | 266 |
3 |
| Trespa International B.V. | 80 |
3 |
| Voith Patent GmbH | 2769 |
3 |
| Wilsonart LLC | 99 |
3 |
| Philip Morris Products S.A. | 7707 |
2 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10949 |
2 |
| Kaneka Corporation | 4614 |
2 |
| Henkel AG & Co. KGaA | 10620 |
2 |
| Arjo Wiggins Fine Papers Limited | 26 |
2 |
| Buschman Corporation | 4 |
2 |
| Fritz Egger GmbH & Co. og | 244 |
2 |
| Kolon Industries, Inc. | 1702 |
2 |
| Metso Paper, Inc. | 418 |
2 |
| Other owners | 81 |