- All sections
- D - Textilespaper
- D21B - Fibrous raw materials or their mechanical treatment
- D21B 1/08 - Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods the raw material being waste paperFibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods the raw material being rags
Patent holdings for IPC class D21B 1/08
Total number of patents in this class: 103
10-year publication summary
|
11
|
6
|
10
|
5
|
3
|
5
|
7
|
7
|
5
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Seiko Epson Corporation | 20365 |
51 |
| Unicharm Corporation | 2982 |
4 |
| Bouldin Corporation | 25 |
3 |
| Reculiner BVBA | 4 |
3 |
| Andritz Inc. | 324 |
2 |
| Kankyokeieisogokenkyusho Co., Inc. | 12 |
2 |
| Nu-Wool Co., Inc. | 11 |
2 |
| Stora Enso Oyj | 1660 |
2 |
| Voith Patent GmbH | 2742 |
2 |
| GPCP IP Holdings LLC | 1531 |
2 |
| Waste Paper Trade C.V. | 5 |
2 |
| Beijing King Mahlon Science & Technology Development Co., Ltd. | 5 |
2 |
| Andritz Kuesters GmbH | 13 |
1 |
| Andritz Kusters GmbH | 53 |
1 |
| Duplo Seiko Corporation | 86 |
1 |
| Ecolab USA Inc. | 5820 |
1 |
| Federal-Mogul Powertrain, Inc. | 78 |
1 |
| Fiberight LLC | 1 |
1 |
| Fibrecycle Pty Ltd | 40 |
1 |
| Georgia-Pacific Consumer Products LP | 99 |
1 |
| Other owners | 18 |