- 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 19/22 - Polyalkenes, e.g. polystyrene
Patent holdings for IPC class D21H 19/22
Total number of patents in this class: 192
10-year publication summary
9
|
15
|
19
|
19
|
20
|
20
|
14
|
24
|
36
|
4
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Stora Enso Oyj | 1504 |
24 |
Kemira Oyj | 1167 |
14 |
BASF SE | 19740 |
13 |
Kimberly-clark Worldwide, Inc. | 5854 |
7 |
WestRock MWV, LLC | 335 |
7 |
Smart Planet Technologies, Inc. | 29 |
6 |
Dow Global Technologies LLC | 10147 |
5 |
Cascades Sonoco Inc. | 29 |
5 |
Koehler Innovation & Technology GmbH | 31 |
5 |
Société des Produits Nestlé S.A. | 9672 |
4 |
Fiberlean Technologies Limited | 116 |
4 |
Kuraray Co., Ltd. | 3392 |
4 |
Oji Holdings Corporation | 660 |
4 |
E. I. du Pont de Nemours and Company | 4345 |
3 |
Altria Client Services LLC | 1866 |
3 |
Arjo Wiggins Fine Papers Limited | 28 |
3 |
JL Darling, LLC | 15 |
3 |
Mondi AG | 129 |
3 |
Eco-Products, PBC | 45 |
3 |
The Procter & Gamble Company | 22178 |
2 |
Other owners | 70 |