- 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: 66
10-year publication summary
|
7
|
1
|
6
|
1
|
6
|
11
|
8
|
8
|
7
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kemira Oyj | 1261 |
17 |
| SCA Forest Products AB | 82 |
7 |
| Japan Tobacco Inc. | 3549 |
4 |
| Metgen Oy | 43 |
4 |
| Solenis Technologies, L.P. | 304 |
4 |
| Stora Enso Oyj | 1654 |
4 |
| OrganoClick AB | 70 |
3 |
| Corning Incorporated | 10511 |
2 |
| Ecolab USA Inc. | 5810 |
2 |
| GranBio Intellectual Property Holdings, LLC | 125 |
2 |
| one.five GmbH | 4 |
2 |
| Société des Produits Nestlé S.A. | 10044 |
1 |
| Daikin Industries, Ltd. | 10513 |
1 |
| Consejo Superior de Investigaciones Cientificas (csic) | 1447 |
1 |
| Domsjö Fabriker AB | 7 |
1 |
| Kolon Industries, Inc. | 1844 |
1 |
| Mondi AG | 216 |
1 |
| Neenah Gessner GmbH | 95 |
1 |
| Oregon State University | 417 |
1 |
| Renmatix, Inc. | 131 |
1 |
| Other owners | 6 |