- 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 19/20 - Coatings without pigments applied in a form other than the aqueous solution defined in group comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
Patent holdings for IPC class D21H 19/20
Total number of patents in this class: 565
10-year publication summary
|
30
|
33
|
28
|
36
|
40
|
45
|
47
|
58
|
54
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kuraray Co., Ltd. | 3557 |
30 |
| Dow Global Technologies LLC | 10720 |
23 |
| BASF SE | 21151 |
22 |
| Daikin Industries, Ltd. | 10227 |
15 |
| Oji Holdings Corporation | 761 |
13 |
| Kemira Oyj | 1231 |
12 |
| WestRock MWV, LLC | 335 |
12 |
| Rohm and Haas Company | 2946 |
11 |
| Société des Produits Nestlé S.A. | 9931 |
10 |
| UPM-Kymmene Corporation | 964 |
10 |
| Hewlett-Packard Development Company, L.P. | 25446 |
9 |
| Stora Enso Oyj | 1648 |
9 |
| Kimberly-clark Worldwide, Inc. | 5312 |
8 |
| Henkel AG & Co. KGaA | 10699 |
8 |
| Billerudkorsnas AB | 88 |
8 |
| Mitsubishi HiTec Paper Europe GmbH | 70 |
8 |
| Harima Chemicals, Inc. | 203 |
7 |
| Mondi AG | 193 |
7 |
| Nippon Paper Industries Co., Ltd. | 834 |
7 |
| Seiko PMC Corporation | 85 |
7 |
| Other owners | 329 |