- 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 19/44 - Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
Patent holdings for IPC class D21H 19/44
Total number of patents in this class: 177
10-year publication summary
|
14
|
11
|
10
|
7
|
7
|
9
|
9
|
14
|
13
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| WestRock MWV, LLC | 332 |
16 |
| Hewlett-Packard Development Company, L.P. | 25342 |
13 |
| Stora Enso Oyj | 1632 |
9 |
| BASF SE | 21129 |
6 |
| Mitsubishi Paper Mills Limited | 228 |
6 |
| Omya International AG | 771 |
6 |
| Neenah Gessner GmbH | 92 |
5 |
| Billerudkorsnas AB | 88 |
4 |
| Nippon Paper Industries Co., Ltd. | 840 |
4 |
| LG Chem, Ltd. | 17840 |
3 |
| J.M. Huber Corporation | 110 |
3 |
| Kemira Oyj | 1239 |
3 |
| Tetra Laval Holdings & Finance S.A. | 2192 |
3 |
| CCL Label, Inc. | 504 |
2 |
| Cellucomp Limited | 38 |
2 |
| Hankuk Paper Mfg. Co., Ltd | 11 |
2 |
| Imerys Minerals Limited | 115 |
2 |
| Immunolight, LLC | 211 |
2 |
| Lamberti SpA | 256 |
2 |
| Oji Holdings Corporation | 780 |
2 |
| Other owners | 82 |