- 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: 127
10-year publication summary
|
12
|
6
|
8
|
6
|
11
|
9
|
6
|
11
|
5
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Seiko Epson Corporation | 19131 |
10 |
| Stora Enso Oyj | 1589 |
9 |
| Kemira Oyj | 1177 |
8 |
| Kimberly-clark Worldwide, Inc. | 5512 |
7 |
| GPCP IP Holdings LLC | 1648 |
7 |
| Soane Materials LLC | 18 |
6 |
| Ecolab USA Inc. | 5406 |
3 |
| hülsta-werke Hüls GmbH & Co. KG | 44 |
3 |
| Johns Manville | 950 |
3 |
| Hewlett-Packard Development Company, L.P. | 26164 |
2 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10729 |
2 |
| Agfa-Gevaert | 282 |
2 |
| Arjo Wiggins Fine Papers Limited | 26 |
2 |
| Arjowiggins Security | 126 |
2 |
| Crane AB | 5 |
2 |
| Crane & Co., Inc. | 120 |
2 |
| Crane Security Technologies, Inc. | 18 |
2 |
| Georgia-Pacific Consumer Products LP | 115 |
2 |
| Kemira Chemicals, Inc. | 80 |
2 |
| Kemira Oyj | 4 |
2 |
| Other owners | 49 |