- 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 19/64 - Inorganic compounds
Patent holdings for IPC class D21H 19/64
Total number of patents in this class: 88
10-year publication summary
|
12
|
9
|
11
|
11
|
6
|
7
|
7
|
4
|
5
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hewlett-Packard Development Company, L.P. | 25076 |
10 |
| Kemira Oyj | 1271 |
5 |
| BASF SE | 21337 |
3 |
| J.M. Huber Corporation | 108 |
3 |
| Packaging and Crating Technologies, LLC | 11 |
3 |
| Stora Enso Oyj | 1670 |
3 |
| Sappi North America, Inc. | 99 |
3 |
| Eastman Kodak Company | 2561 |
2 |
| Billerud AB | 171 |
2 |
| Hankuk Paper Mfg. Co., Ltd | 11 |
2 |
| KT & G Corporation | 3207 |
2 |
| Mitsubishi Paper Mills Limited | 224 |
2 |
| Oji Holdings Corporation | 814 |
2 |
| WestRock MWV, LLC | 331 |
2 |
| Lignum Technologies AG | 78 |
2 |
| Agriboard Green Building Systems, LLC | 8 |
2 |
| Société des Produits Nestlé S.A. | 10068 |
1 |
| 3m Innovative Properties Company | 17465 |
1 |
| Philip Morris Products S.A. | 8398 |
1 |
| Canon Inc. | 44776 |
1 |
| Other owners | 36 |