- All sections
- D - Textilespaper
- D21B - Fibrous raw materials or their mechanical treatment
- D21B 1/16 - Disintegrating in mills in the presence of chemical agents
Patent holdings for IPC class D21B 1/16
Total number of patents in this class: 67
10-year publication summary
|
2
|
7
|
5
|
3
|
4
|
2
|
4
|
5
|
2
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Andritz Inc. | 322 |
5 |
| Billerud AB | 162 |
4 |
| Metsa Board Oyj | 52 |
4 |
| Andritz AG | 244 |
3 |
| Fiberlean Technologies Limited | 98 |
3 |
| UPM-Kymmene Corporation | 993 |
3 |
| Biofiber Tech Sweden AB | 7 |
3 |
| BASF SE | 21318 |
2 |
| Arkema France | 4246 |
2 |
| ITT Manufacturing Enterprises, Inc. | 104 |
2 |
| Linde Aktiengesellschaft | 1421 |
2 |
| Resolute FP US Inc. | 3 |
2 |
| WestRock MWV, LLC | 329 |
2 |
| Qilu University of Technology | 153 |
2 |
| Uni-Charm Corporation | 601 |
1 |
| The Board of Trustees of the University of Alabama | 434 |
1 |
| Celulosa Arauco y Constitucion S.A. | 34 |
1 |
| Department of Biotechnology | 64 |
1 |
| Eau-viron Incorporated | 4 |
1 |
| Grain Processing Corporation | 82 |
1 |
| Other owners | 22 |