- 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 17/64 - Alkaline compounds
Patent holdings for IPC class D21H 17/64
Total number of patents in this class: 70
10-year publication summary
|
5
|
4
|
5
|
2
|
2
|
5
|
4
|
4
|
7
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Stora Enso Oyj | 1658 |
6 |
| UNILIN, besloten vennootschap | 901 |
5 |
| The Coca-Cola Company | 2486 |
4 |
| Ecolab USA Inc. | 5567 |
3 |
| State Line Holdings, LLC | 4 |
3 |
| Société des Produits Nestlé S.A. | 9856 |
2 |
| Board of Trustees of Western Michigan University, The | 93 |
2 |
| Kemira Oyj | 1217 |
2 |
| Linde Aktiengesellschaft | 1488 |
2 |
| Omya International AG | 770 |
2 |
| Ahlstrom Oyj | 116 |
2 |
| Ahlstrom-munksjo Oyj | 220 |
2 |
| Nanollose Limited | 30 |
2 |
| NSK Ltd. | 2807 |
1 |
| Billerudkorsnas AB | 88 |
1 |
| Casella Waste Systems, Inc. | 48 |
1 |
| China Tobacco Chuanyu Industrial Co., Ltd. | 6 |
1 |
| Coatex S.A.S. | 227 |
1 |
| Fiberlean Technologies Limited | 112 |
1 |
| Fibertus Oy | 1 |
1 |
| Other owners | 26 |