- All sections
- D - Textilespaper
- D21B - Fibrous raw materials or their mechanical treatment
- D21B 1/30 - Defibrating by other means
Patent holdings for IPC class D21B 1/30
Total number of patents in this class: 79
10-year publication summary
|
3
|
2
|
6
|
8
|
7
|
4
|
6
|
13
|
1
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Fiberlean Technologies Limited | 98 |
12 |
| Billerud AB | 163 |
4 |
| Voith Patent GmbH | 2741 |
3 |
| MDF Recovery Limited | 4 |
3 |
| Suzano S.A. | 193 |
3 |
| Zelfo Technology GmbH | 9 |
3 |
| Florentaise | 17 |
2 |
| Nusenbaum, Vyvyan Justin | 3 |
2 |
| UPM-Kymmene Corporation | 1005 |
2 |
| Valmet AB | 556 |
2 |
| Chuetsu-pulp and Paper Co,.ltd | 29 |
2 |
| Jarolim Fasertechnik GmbH | 3 |
2 |
| NUSENBAUM, Geraldine Linda | 3 |
2 |
| Biofuel Technology Holding ApS | 7 |
2 |
| The Procter & Gamble Company | 21852 |
1 |
| Kao Corporation | 5081 |
1 |
| DSM IP Assets B.V. | 5389 |
1 |
| Toray Advanced Materials Korea Inc. | 301 |
1 |
| Amandus Kahl GmbH & Co. KG | 11 |
1 |
| Andritz AG | 245 |
1 |
| Other owners | 29 |