- All sections
- D - Textiles; paper
- D21H - Pulp compositions; preparation thereof not covered by subclasses , ; impregnating or coating of paper; treatment of finished paper not covered by class or subclass ; paper not otherwise provided for
- D21H 19/58 - Polymers or oligomers of diolefins, aromatic vinyl monomers or unsaturated acids or derivatives thereof
Patent holdings for IPC class D21H 19/58
Total number of patents in this class: 294
10-year publication summary
|
14
|
24
|
27
|
24
|
24
|
26
|
21
|
27
|
23
|
8
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| WestRock MWV, LLC | 335 |
31 |
| BASF SE | 19740 |
26 |
| Kemira Oyj | 1167 |
24 |
| Coatex S.A.S. | 231 |
12 |
| Stora Enso Oyj | 1504 |
11 |
| Dow Global Technologies LLC | 10147 |
8 |
| Rohm and Haas Company | 2805 |
6 |
| Nippon Paper Industries Co., Ltd. | 782 |
6 |
| Packaging and Crating Technologies, LLC | 14 |
5 |
| Hewlett-Packard Development Company, L.P. | 28538 |
4 |
| Billerudkorsnas AB | 91 |
4 |
| COATEX une société par actions simplifiée | 150 |
4 |
| Westcott Materials, LLC | 6 |
4 |
| Billerud AB | 72 |
3 |
| Novamont S.p.A. | 354 |
3 |
| Omya International AG | 816 |
3 |
| Sun Chemical Corporation | 865 |
3 |
| Sappi North America, Inc. | 102 |
3 |
| Imertech SAS | 224 |
3 |
| Koehler Innovation & Technology GmbH | 31 |
3 |
| Other owners | 128 |