- 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 17/56 - PolyaminesPolyiminesPolyester-imides
Patent holdings for IPC class D21H 17/56
Total number of patents in this class: 179
10-year publication summary
|
14
|
16
|
8
|
8
|
3
|
8
|
7
|
6
|
3
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kemira Oyj | 1232 |
34 |
| Ecolab USA Inc. | 5659 |
22 |
| Solenis Technologies, L.P. | 331 |
21 |
| Footprint International, LLC | 82 |
9 |
| BASF SE | 21149 |
8 |
| Solenis Technologies Cayman, L.P. | 313 |
4 |
| AGC Chemicals Americas, Inc. | 42 |
3 |
| Billerud AB | 143 |
3 |
| Buckman Laboratories International, Inc. | 241 |
3 |
| The Chemours Company Fc, LLC | 1294 |
3 |
| Metsa Board Oyj | 52 |
3 |
| Stora Enso Oyj | 1646 |
3 |
| DuPont Safety & Construction, Inc. | 684 |
3 |
| Georgia-Pacific Chemicals LLC | 135 |
2 |
| Akzo Nobel N.V. | 160 |
2 |
| Depco-trh Pty Ltd | 11 |
2 |
| First Quality Tissue, LLC | 157 |
2 |
| Hercules Incorporated | 126 |
2 |
| Kemira Chemicals, Inc. | 78 |
2 |
| Nalco Company | 559 |
2 |
| Other owners | 46 |