- 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 17/21 - Macromolecular organic compounds of natural originDerivatives thereof
Patent holdings for IPC class D21H 17/21
Total number of patents in this class: 66
10-year publication summary
|
5
|
10
|
3
|
3
|
3
|
3
|
2
|
6
|
7
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kemira Oyj | 1228 |
11 |
| Suzano S.A. | 206 |
7 |
| The Procter & Gamble Company | 22025 |
4 |
| Fibria Celulose S/A | 4 |
3 |
| Sway Innovation Co. | 11 |
3 |
| HaskoningDHV Nederland B.V. | 76 |
2 |
| Kemira Water Solutions, Inc. | 24 |
2 |
| Nanyang Technological University | 2079 |
2 |
| Rockline Industries, Inc. | 80 |
2 |
| Stora Enso Oyj | 1665 |
2 |
| Ch-polymers Oy | 11 |
2 |
| Greentech Global Pte. Ltd. | 20 |
2 |
| BASF SE | 21137 |
1 |
| Ecolab USA Inc. | 5607 |
1 |
| Fibria Celulose S.A. | 15 |
1 |
| FPInnovations | 231 |
1 |
| Innventia AB | 34 |
1 |
| Mantrose-Haeuser Co., Inc. | 39 |
1 |
| Omya International AG | 770 |
1 |
| Soane Labs, LLC | 20 |
1 |
| Other owners | 16 |