- 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
|
1
|
5
|
5
|
3
|
4
|
2
|
2
|
3
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Andritz Inc. | 332 |
5 |
| Metsa Board Oyj | 53 |
5 |
| BASF SE | 20979 |
3 |
| Andritz AG | 234 |
3 |
| Fiberlean Technologies Limited | 114 |
3 |
| UPM-Kymmene Corporation | 938 |
3 |
| Biofiber Tech Sweden AB | 7 |
3 |
| Arkema France | 4164 |
2 |
| Billerud AB | 126 |
2 |
| ITT Manufacturing Enterprises, Inc. | 148 |
2 |
| Linde Aktiengesellschaft | 1497 |
2 |
| Resolute FP US Inc. | 3 |
2 |
| WestRock MWV, LLC | 336 |
2 |
| Qilu University of Technology | 153 |
2 |
| Uni-Charm Corporation | 603 |
1 |
| The Board of Trustees of the University of Alabama | 418 |
1 |
| Celulosa Arauco y Constitucion S.A. | 38 |
1 |
| Department of Biotechnology | 69 |
1 |
| Dynea Erkner GmbH | 1 |
1 |
| Eau-viron Incorporated | 4 |
1 |
| Other owners | 22 |