- 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 17/20 - Macromolecular organic compounds
Patent holdings for IPC class D21H 17/20
Total number of patents in this class: 133
10-year publication summary
|
6
|
8
|
6
|
11
|
9
|
6
|
11
|
8
|
10
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kemira Oyj | 1262 |
13 |
| Seiko Epson Corporation | 20446 |
10 |
| Stora Enso Oyj | 1661 |
8 |
| Kimberly-clark Worldwide, Inc. | 5257 |
7 |
| GPCP IP Holdings LLC | 1526 |
6 |
| Soane Materials LLC | 32 |
6 |
| Solenis Technologies Cayman, L.P. | 321 |
5 |
| Ecolab USA Inc. | 5831 |
3 |
| hülsta-werke Hüls GmbH & Co. KG | 41 |
3 |
| Johns Manville | 915 |
3 |
| Kemira Water Solutions, Inc. | 38 |
3 |
| SOLENIS TECHNOLOGIES, L.P., Solenis International, L.P., a Delaware limited partnership, DBA Solenis Technologies, L.P. | 227 |
3 |
| Hewlett-Packard Development Company, L.P. | 25139 |
2 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11130 |
2 |
| Agfa-Gevaert | 301 |
2 |
| Arjo Wiggins Fine Papers Limited | 24 |
2 |
| Arjowiggins Security | 113 |
2 |
| Crane AB | 5 |
2 |
| Crane & Co., Inc. | 133 |
2 |
| Crane Security Technologies, Inc. | 19 |
2 |
| Other owners | 47 |