- All sections
- D - Textilespaper
- D21B - Fibrous raw materials or their mechanical treatment
- D21B 1/06 - Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods
Patent holdings for IPC class D21B 1/06
Total number of patents in this class: 222
10-year publication summary
|
24
|
23
|
13
|
21
|
18
|
11
|
17
|
22
|
12
|
16
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Seiko Epson Corporation | 20446 |
70 |
| Voith Patent GmbH | 2740 |
7 |
| The Procter & Gamble Company | 21862 |
5 |
| UPM-Kymmene Corporation | 1007 |
5 |
| Zuiko Corporation | 440 |
5 |
| Daio Paper Corporation | 1420 |
4 |
| Entsorgafin S.p.A. | 9 |
4 |
| Xyleco, Inc. | 186 |
4 |
| IFG Technologies, LLC | 13 |
4 |
| Forest Concepts, LLC | 23 |
3 |
| POET Research, Inc. | 272 |
3 |
| Stora Enso Oyj | 1661 |
3 |
| PulPac AB | 124 |
3 |
| Yi Chun Green Technology Co., Ltd. | 6 |
3 |
| BASF SE | 21320 |
2 |
| Columbia Insurance Company | 1442 |
2 |
| Andritz AG | 247 |
2 |
| Fameccanica.Data S.p.A. | 231 |
2 |
| Knauf Insulation, Inc. | 183 |
2 |
| Oji Holdings Corporation | 807 |
2 |
| Other owners | 87 |