- 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: 168
10-year publication summary
|
11
|
14
|
11
|
10
|
7
|
7
|
9
|
8
|
12
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| WestRock MWV, LLC | 337 |
14 |
| Hewlett-Packard Development Company, L.P. | 25972 |
13 |
| BASF SE | 20758 |
7 |
| Mitsubishi Paper Mills Limited | 233 |
6 |
| Omya International AG | 769 |
6 |
| Stora Enso Oyj | 1605 |
6 |
| Billerudkorsnas AB | 88 |
4 |
| LG Chem, Ltd. | 17549 |
3 |
| J.M. Huber Corporation | 130 |
3 |
| Kemira Oyj | 1192 |
3 |
| Neenah Gessner GmbH | 69 |
3 |
| Tetra Laval Holdings & Finance S.A. | 2116 |
3 |
| Archroma IP GmbH | 457 |
2 |
| CCL Label, Inc. | 501 |
2 |
| Cellucomp Limited | 35 |
2 |
| Hankuk Paper Mfg. Co., Ltd | 10 |
2 |
| Imerys Minerals Limited | 120 |
2 |
| Lamberti SpA | 255 |
2 |
| Nippon Paper Industries Co., Ltd. | 823 |
2 |
| Omya Development AG | 93 |
2 |
| Other owners | 81 |