- 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 17/00 - Non-fibrous material added to the pulp, characterised by its constitutionPaper-impregnating material characterised by its constitution
Patent holdings for IPC class D21H 17/00
Total number of patents in this class: 678
10-year publication summary
|
37
|
47
|
35
|
44
|
33
|
52
|
44
|
48
|
56
|
33
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Omya International AG | 771 |
56 |
| Kemira Oyj | 1207 |
55 |
| Ecolab USA Inc. | 5496 |
31 |
| Stora Enso Oyj | 1647 |
25 |
| Solenis Technologies, L.P. | 335 |
21 |
| Buckman Laboratories International, Inc. | 237 |
14 |
| Novozymes A/S | 3321 |
13 |
| Fiberlean Technologies Limited | 114 |
12 |
| International Paper Company | 788 |
10 |
| Specialty Minerals (Michigan) Inc. | 224 |
9 |
| GPCP IP Holdings LLC | 1637 |
9 |
| Kimberly-clark Worldwide, Inc. | 5502 |
8 |
| UPM-Kymmene Corporation | 936 |
8 |
| Omya Development AG | 92 |
6 |
| Hewlett-Packard Development Company, L.P. | 25864 |
5 |
| COATEX une société par actions simplifiée | 165 |
5 |
| Wetend Technologies Oy | 27 |
5 |
| Greentech Global Pte. Ltd. | 20 |
5 |
| BASF SE | 20940 |
4 |
| Philip Morris Products S.A. | 7661 |
4 |
| Other owners | 373 |