- 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 17/26 - Ethers thereof
Patent holdings for IPC class D21H 17/26
Total number of patents in this class: 157
10-year publication summary
|
8
|
9
|
10
|
6
|
18
|
15
|
18
|
12
|
16
|
12
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kemira Oyj | 1258 |
22 |
| The Procter & Gamble Company | 21855 |
15 |
| Stora Enso Oyj | 1653 |
10 |
| Soane Materials LLC | 31 |
8 |
| Nippon Paper Industries Co., Ltd. | 849 |
6 |
| Omya International AG | 777 |
6 |
| Solenis Technologies, L.P. | 304 |
5 |
| Nippon Paper Papylia Co., Ltd. | 38 |
4 |
| Dow Global Technologies LLC | 10944 |
3 |
| Domtar Paper Company, LLC | 124 |
3 |
| Ecolab USA Inc. | 5796 |
3 |
| UPM-Kymmene Corporation | 994 |
3 |
| Essity Hygiene and Health Aktiebolag | 2061 |
3 |
| Purdue Research Foundation | 3916 |
2 |
| Daio Paper Corporation | 1408 |
2 |
| delfortgroup AG | 156 |
2 |
| North Carolina State University | 1593 |
2 |
| Oji Holdings Corporation | 797 |
2 |
| OrganoClick AB | 70 |
2 |
| Pratt Corrugated Holdings, Inc. | 320 |
2 |
| Other owners | 52 |