- 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 17/44 - Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups cationic
Patent holdings for IPC class D21H 17/44
Total number of patents in this class: 155
10-year publication summary
|
9
|
24
|
7
|
9
|
6
|
1
|
8
|
2
|
1
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kemira Oyj | 1258 |
33 |
| Solenis Technologies, L.P. | 304 |
14 |
| BASF SE | 21303 |
11 |
| Ecolab USA Inc. | 5796 |
11 |
| The Chemours Company Fc, LLC | 1341 |
6 |
| Stora Enso Oyj | 1653 |
6 |
| E. I. du Pont de Nemours and Company | 3534 |
4 |
| Kimberly-clark Worldwide, Inc. | 5308 |
4 |
| Nalco Company | 536 |
4 |
| S.p.c.m. SA | 238 |
4 |
| Mercer International Inc. | 30 |
4 |
| Arjowiggins Security | 114 |
3 |
| Billerudkorsnas AB | 88 |
3 |
| Kurita Water Industries Ltd. | 1283 |
3 |
| Solenis Technologies Cayman, L.P. | 21 |
3 |
| Georgia-Pacific Chemicals LLC | 127 |
2 |
| Buckman Laboratories International, Inc. | 240 |
2 |
| Harima Chemicals, Inc. | 204 |
2 |
| Nippon Paper Industries Co., Ltd. | 849 |
2 |
| UPM-Kymmene Corporation | 994 |
2 |
| Other owners | 32 |