- 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 17/37 - Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
Patent holdings for IPC class D21H 17/37
Total number of patents in this class: 718
10-year publication summary
|
70
|
80
|
61
|
58
|
40
|
56
|
41
|
62
|
50
|
19
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kemira Oyj | 1192 |
147 |
| Ecolab USA Inc. | 5444 |
64 |
| Solenis Technologies, L.P. | 331 |
46 |
| BASF SE | 20758 |
22 |
| Dow Global Technologies LLC | 10341 |
18 |
| SNF Group | 346 |
18 |
| Daikin Industries, Ltd. | 9951 |
15 |
| First Quality Tissue, LLC | 156 |
15 |
| S.p.c.m. SA | 249 |
15 |
| International Paper Company | 791 |
14 |
| The Procter & Gamble Company | 22020 |
12 |
| Kemira Chemicals, Inc. | 80 |
12 |
| Solenis Technologies Cayman, L.P. | 296 |
12 |
| Harima Chemicals, Inc. | 204 |
10 |
| SOLENIS TECHNOLOGIES, L.P., Solenis International, L.P., a Delaware limited partnership, DBA Solenis Technologies, L.P. | 190 |
9 |
| ARAKAWA Chemical Industries, Ltd. | 152 |
8 |
| Seiko PMC Corporation | 92 |
8 |
| Stora Enso Oyj | 1605 |
7 |
| Rohm and Haas Company | 2901 |
6 |
| Henkel AG & Co. KGaA | 10442 |
6 |
| Other owners | 254 |