- 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 21/00 - Non-fibrous material added to the pulp, characterised by its function, form or propertiesPaper impregnating or coating material, characterised by its function, form or properties
Patent holdings for IPC class D21H 21/00
Total number of patents in this class: 122
10-year publication summary
|
7
|
4
|
5
|
6
|
3
|
2
|
1
|
2
|
1
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kimberly-clark Worldwide, Inc. | 5295 |
8 |
| Ecolab USA Inc. | 5810 |
8 |
| Kemira Oyj | 1261 |
5 |
| Stora Enso Oyj | 1654 |
5 |
| Nalco Company | 535 |
4 |
| Munksjö Arches | 6 |
3 |
| Omya International AG | 780 |
3 |
| University of Maine System Board of Trustees | 283 |
3 |
| GPCP IP Holdings LLC | 1530 |
3 |
| Solenis Technologies Cayman, L.P. | 33 |
3 |
| The Procter & Gamble Company | 21853 |
2 |
| BASF SE | 21310 |
2 |
| Philip Morris USA Inc. | 652 |
2 |
| Georgia-Pacific Consumer Products LP | 100 |
2 |
| Hercules Incorporated | 113 |
2 |
| Solenis Technologies, L.P. | 304 |
2 |
| SOLENIS TECHNOLOGIES, L.P., Solenis International, L.P., a Delaware limited partnership, DBA Solenis Technologies, L.P. | 226 |
2 |
| Solenis Technologies Cayman, L.P. | 34 |
2 |
| E. I. du Pont de Nemours and Company | 3511 |
1 |
| Hewlett-Packard Development Company, L.P. | 25172 |
1 |
| Other owners | 59 |