- 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: 95
10-year publication summary
|
11
|
11
|
6
|
10
|
5
|
3
|
5
|
7
|
4
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Seiko Epson Corporation | 19371 |
45 |
| Unicharm Corporation | 2870 |
4 |
| Bouldin Corporation | 24 |
3 |
| Kankyokeieisogokenkyusho Co., Inc. | 17 |
3 |
| Reculiner BVBA | 4 |
3 |
| Andritz Inc. | 332 |
2 |
| Nu-Wool Co., Inc. | 11 |
2 |
| Thiele Kaolin Company | 28 |
2 |
| Voith Patent GmbH | 2759 |
2 |
| GPCP IP Holdings LLC | 1630 |
2 |
| Waste Paper Trade C.V. | 5 |
2 |
| Beijing King Mahlon Science & Technology Development Co., Ltd. | 5 |
2 |
| Andritz Kusters GmbH | 56 |
1 |
| Duplo Seiko Corporation | 89 |
1 |
| Ecolab USA Inc. | 5499 |
1 |
| Federal-Mogul Powertrain, Inc. | 86 |
1 |
| Fiberight LLC | 1 |
1 |
| Fibrecycle Pty Ltd | 40 |
1 |
| Georgia-Pacific Consumer Products LP | 110 |
1 |
| Georgia-Pacific Containerboard LLC | 13 |
1 |
| Other owners | 15 |