- All sections
- D - Textiles; paper
- D21H - Pulp compositions; preparation thereof not covered by subclasses , ; impregnating or coating of paper; treatment of finished paper not covered by class or subclass ; paper not otherwise provided for
- D21H 19/12 - Coatings without pigments applied as a solution using water as the only solvent, e.g. in the presence of acid or alkaline compounds
Patent holdings for IPC class D21H 19/12
Total number of patents in this class: 292
10-year publication summary
|
26
|
19
|
17
|
24
|
26
|
22
|
35
|
55
|
48
|
14
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Stora Enso Oyj | 1504 |
26 |
| WestRock MWV, LLC | 335 |
11 |
| BASF SE | 19740 |
10 |
| Kimberly-clark Worldwide, Inc. | 5854 |
8 |
| The Procter & Gamble Company | 22178 |
7 |
| Hewlett-Packard Development Company, L.P. | 28538 |
5 |
| Daikin Industries, Ltd. | 9495 |
5 |
| Henkel AG & Co. KGaA | 10129 |
5 |
| Cascades Sonoco Inc. | 29 |
5 |
| Daio Paper Corporation | 1407 |
5 |
| Kuraray Co., Ltd. | 3392 |
5 |
| Nippon Paper Papylia Co., Ltd. | 33 |
5 |
| Kemira Oyj | 1167 |
4 |
| Omya International AG | 816 |
4 |
| OrganoClick AB | 70 |
4 |
| Solenis Technologies, L.P. | 306 |
4 |
| DuPont Safety & Construction, Inc. | 676 |
4 |
| Westcott Materials, LLC | 6 |
4 |
| Chemstone, Inc. | 21 |
3 |
| delfortgroup AG | 147 |
3 |
| Other owners | 165 |