- 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 21/54 - Additives of definite length or shape being spherical, e.g. microcapsules or beads
Patent holdings for IPC class D21H 21/54
Total number of patents in this class: 88
10-year publication summary
|
4
|
10
|
6
|
6
|
4
|
5
|
6
|
2
|
5
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Henkel AG & Co. KGaA | 10655 |
17 |
| Stora Enso Oyj | 1665 |
8 |
| Akzo Nobel N.V. | 166 |
6 |
| 3m Innovative Properties Company | 17717 |
3 |
| Eka Chemicals AB | 17 |
3 |
| Kemira Oyj | 1228 |
3 |
| Philip Morris Products S.A. | 7778 |
2 |
| Kimberly-clark Worldwide, Inc. | 5323 |
2 |
| Rohm and Haas Company | 2938 |
2 |
| Daio Paper Corporation | 1391 |
2 |
| International Paper Company | 749 |
2 |
| Novamont S.p.A. | 361 |
2 |
| OMNOVA Solutions Inc. | 44 |
2 |
| Symrise AG | 1766 |
2 |
| UPM-Kymmene Corporation | 956 |
2 |
| Wacker Chemical Corporation | 30 |
2 |
| Outlier Solutions, LLC | 2 |
2 |
| Blue Ocean Closures AB | 28 |
2 |
| BASF SE | 21137 |
1 |
| Dow Global Technologies LLC | 10582 |
1 |
| Other owners | 22 |