- 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 17/09 - Sulfur-containing compounds
Patent holdings for IPC class D21H 17/09
Total number of patents in this class: 58
10-year publication summary
|
8
|
3
|
4
|
8
|
7
|
2
|
3
|
3
|
4
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kemira Oyj | 1219 |
7 |
| Archroma IP GmbH | 459 |
5 |
| Ecolab USA Inc. | 5544 |
4 |
| BASF SE | 21036 |
3 |
| The Procter & Gamble Company | 21996 |
2 |
| Blankophor GmbH & Co. KG | 18 |
2 |
| General Mills, Inc. | 996 |
2 |
| Miyoshi Oil & Fat Co., Ltd. | 100 |
2 |
| Pratt Corrugated Holdings, Inc. | 292 |
2 |
| Solenis Technologies, L.P. | 336 |
2 |
| University of Copenhagen | 417 |
2 |
| University of Maine System Board of Trustees | 290 |
2 |
| Soane Materials LLC | 22 |
2 |
| Kimberly-clark Worldwide, Inc. | 5430 |
1 |
| Kaneka Corporation | 4609 |
1 |
| National Institute of Advanced Industrial Science and Technology | 3797 |
1 |
| Buckman Laboratories International, Inc. | 240 |
1 |
| Cellutech AB | 22 |
1 |
| Datalase Ltd. | 113 |
1 |
| Domtar Inc. | 127 |
1 |
| Other owners | 14 |