- 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 19/54 - Starch
Patent holdings for IPC class D21H 19/54
Total number of patents in this class: 396
10-year publication summary
|
45
|
28
|
25
|
37
|
21
|
19
|
27
|
26
|
31
|
22
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kemira Oyj | 1265 |
29 |
| Stora Enso Oyj | 1662 |
19 |
| WestRock MWV, LLC | 332 |
18 |
| BASF SE | 21318 |
17 |
| Billerud AB | 166 |
17 |
| Roquette Freres | 1063 |
12 |
| Hewlett-Packard Development Company, L.P. | 25121 |
11 |
| Cargill, Incorporated | 2986 |
10 |
| Mondi AG | 233 |
10 |
| Omya International AG | 780 |
10 |
| delfortgroup AG | 159 |
9 |
| Henkel AG & Co. KGaA | 10771 |
8 |
| Domtar Paper Company, LLC | 122 |
8 |
| Ecolab USA Inc. | 5837 |
7 |
| Nippon Paper Industries Co., Ltd. | 854 |
7 |
| Essity Operations France | 38 |
7 |
| Dow Global Technologies LLC | 11051 |
5 |
| International Paper Company | 595 |
5 |
| Novamont S.p.A. | 394 |
5 |
| Solenis Technologies, L.P. | 304 |
5 |
| Other owners | 177 |