- 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 17/41 - Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups
Patent holdings for IPC class D21H 17/41
Total number of patents in this class: 74
10-year publication summary
|
4
|
11
|
4
|
6
|
2
|
3
|
1
|
1
|
2
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kemira Oyj | 1206 |
11 |
| Solenis Technologies, L.P. | 335 |
8 |
| Ecolab USA Inc. | 5480 |
6 |
| Harima Chemicals, Inc. | 204 |
5 |
| BASF SE | 20933 |
4 |
| Nalco Company | 563 |
4 |
| Nippon Paper Industries Co., Ltd. | 832 |
3 |
| Seiko PMC Corporation | 92 |
3 |
| S.p.c.m. SA | 240 |
3 |
| Stora Enso Oyj | 1636 |
3 |
| Kurita Water Industries Ltd. | 1194 |
2 |
| Specialty Minerals (Michigan) Inc. | 223 |
2 |
| Envioneer Co., Ltd. | 20 |
2 |
| Kimberly-clark Worldwide, Inc. | 5496 |
1 |
| Georgia-Pacific Chemicals LLC | 135 |
1 |
| Applied Chemicals Handels-GmbH | 22 |
1 |
| Buckman Laboratories International, Inc. | 237 |
1 |
| Kemira Chemicals, Inc. | 79 |
1 |
| Nippon Paper Papylia Co., Ltd. | 39 |
1 |
| Oberthur Fiduciaire SAS | 134 |
1 |
| Other owners | 11 |