- 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 17/69 - Water-insoluble compounds, e.g. fillers or pigments modified, e.g. by association with other compositions prior to incorporation in the pulp or paper
Patent holdings for IPC class D21H 17/69
Total number of patents in this class: 203
10-year publication summary
|
22
|
8
|
12
|
5
|
7
|
4
|
2
|
2
|
1
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Omya International AG | 778 |
36 |
| The Chemours Company Fc, LLC | 1315 |
16 |
| E. I. du Pont de Nemours and Company | 3632 |
15 |
| Kemira Oyj | 1244 |
14 |
| BASF SE | 21165 |
10 |
| Stora Enso Oyj | 1635 |
9 |
| Ecolab USA Inc. | 5753 |
7 |
| Nalco Company | 542 |
7 |
| Nippon Paper Industries Co., Ltd. | 839 |
7 |
| Tronox LLC | 155 |
7 |
| UPM-Kymmene Corporation | 983 |
7 |
| Fiberlean Technologies Limited | 103 |
6 |
| Coatex S.A.S. | 212 |
4 |
| Imerys Talc Europe | 65 |
2 |
| Kronos International, Inc. | 112 |
2 |
| Nordkalk Oy AB | 25 |
2 |
| Schaefer Kalk GmbH & Co. KG | 47 |
2 |
| Schoeller Technocell GmbH & Co. KG | 19 |
2 |
| Solenis Technologies, L.P. | 305 |
2 |
| GPCP IP Holdings LLC | 1543 |
2 |
| Other owners | 44 |