- 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 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: 33
10-year publication summary
|
0
|
1
|
1
|
0
|
1
|
4
|
9
|
2
|
6
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Brown LLC | 83 |
4 |
| Voith Patent GmbH | 2740 |
4 |
| Stora Enso Oyj | 1661 |
3 |
| Philip Morris Products S.A. | 8291 |
2 |
| Fiberlean Technologies Limited | 98 |
2 |
| BASF SE | 21320 |
1 |
| Xerox Corporation | 4379 |
1 |
| Philip Morris USA Inc. | 648 |
1 |
| Merck Patent GmbH | 5747 |
1 |
| Ecochem International, naamloze vennootschap | 26 |
1 |
| Fritz Egger GmbH & Co. og | 249 |
1 |
| Landqart | 4 |
1 |
| Landqart AG | 10 |
1 |
| Mondi AG | 225 |
1 |
| The Procter & Gamble Plaza | 18 |
1 |
| Solenis Technologies, L.P. | 304 |
1 |
| Tokushu Tokai Paper Co., Ltd. | 40 |
1 |
| University of Washington | 2464 |
1 |
| GL&V Canada Inc. | 20 |
1 |
| Aquapak IP Limited | 29 |
1 |
| Other owners | 3 |