- All sections
- D - Textiles; paper
- D21H - Pulp compositions; preparation thereof not covered by subclasses , ; impregnating or coating of paper; treatment of finished paper not covered by class or subclass ; paper not otherwise provided for
- D21H 23/46 - Pouring or allowing the fluid to flow in a continuous stream on to the surface, the entire stream being carried away by the paper
Patent holdings for IPC class D21H 23/46
Total number of patents in this class: 27
10-year publication summary
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0
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1
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0
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1
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1
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0
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1
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4
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8
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1
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Voith Patent GmbH | 2727 |
5 |
| Stora Enso Oyj | 1504 |
3 |
| Fiberlean Technologies Limited | 116 |
2 |
| Metso Paper, Inc. | 528 |
2 |
| Philip Morris Products S.A. | 6751 |
1 |
| Philip Morris USA Inc. | 744 |
1 |
| Merck Patent GmbH | 5909 |
1 |
| Ecochem International, naamloze vennootschap | 21 |
1 |
| Fritz Egger GmbH & Co. og | 237 |
1 |
| Kuraray Specialities Europe GmbH | 4 |
1 |
| Landqart | 13 |
1 |
| Landqart AG | 4 |
1 |
| MeadWestvaco Packaging Systems LLC | 213 |
1 |
| The Procter & Gamble Plaza | 19 |
1 |
| Solenis Technologies, L.P. | 306 |
1 |
| Tokushu Tokai Paper Co., Ltd. | 36 |
1 |
| University of Washington | 2157 |
1 |
| GL&V Canada Inc. | 24 |
1 |
| Aquapak IP Limited | 18 |
1 |
| Other owners | 0 |