- 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 19/62 - Macromolecular organic compounds or oligomers thereof obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
Patent holdings for IPC class D21H 19/62
Total number of patents in this class: 105
10-year publication summary
|
2
|
9
|
10
|
6
|
6
|
11
|
11
|
9
|
9
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| WestRock MWV, LLC | 336 |
7 |
| Hewlett-Packard Development Company, L.P. | 25864 |
6 |
| Stora Enso Oyj | 1647 |
6 |
| Flooring Technologies Ltd. | 166 |
4 |
| Lamberti SpA | 255 |
4 |
| Nutrition & Biosciences USA 4, Inc. | 224 |
4 |
| Oji Holdings Corporation | 725 |
3 |
| BASF SE | 20940 |
2 |
| E. I. du Pont de Nemours and Company | 4050 |
2 |
| Axalta Coating Systems IP Co., LLC | 475 |
2 |
| Coatex S.A.S. | 228 |
2 |
| Cooperatie Avebe U.A. | 94 |
2 |
| Depco-trh Pty Ltd | 13 |
2 |
| GRUPPO CORDENONS S.p.A. | 49 |
2 |
| Hankuk Paper Mfg. Co., Ltd | 10 |
2 |
| Mitsubishi HiTec Paper Europe GmbH | 71 |
2 |
| Evonik Operations GmbH | 4114 |
2 |
| Appvion, LLC | 66 |
2 |
| Mitsui Chemicals, Inc. | 3222 |
1 |
| Akzo Nobel Coatings International B.V. | 2087 |
1 |
| Other owners | 47 |