- All sections
- D - Textilespaper
- D21H - Pulp compositionspreparation thereof not covered by subclasses , impregnating or coating of papertreatment of finished paper not covered by class or subclass paper not otherwise provided for
- D21H 17/23 - Lignins
Patent holdings for IPC class D21H 17/23
Total number of patents in this class: 54
10-year publication summary
|
2
|
7
|
1
|
6
|
1
|
6
|
11
|
8
|
6
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kemira Oyj | 1207 |
15 |
| SCA Forest Products AB | 81 |
5 |
| Japan Tobacco Inc. | 3580 |
4 |
| Metgen Oy | 43 |
4 |
| Solenis Technologies, L.P. | 334 |
4 |
| OrganoClick AB | 73 |
3 |
| Corning Incorporated | 10252 |
2 |
| Ecolab USA Inc. | 5471 |
2 |
| Stora Enso Oyj | 1634 |
2 |
| GranBio Intellectual Property Holdings, LLC | 119 |
2 |
| BASF SE | 20904 |
1 |
| Consejo Superior de Investigaciones Cientificas (csic) | 1366 |
1 |
| Domsjö Fabriker AB | 7 |
1 |
| Kolon Industries, Inc. | 1671 |
1 |
| Mondi AG | 155 |
1 |
| Oregon State University | 379 |
1 |
| Renmatix, Inc. | 131 |
1 |
| Sugar Industry Innovation Pty. Ltd. | 4 |
1 |
| UPM-Kymmene Corporation | 937 |
1 |
| Fiberwood Oy | 12 |
1 |
| Other owners | 1 |