- 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 17/45 - Nitrogen-containing groups
Patent holdings for IPC class D21H 17/45
Total number of patents in this class: 257
10-year publication summary
|
25
|
22
|
29
|
8
|
14
|
11
|
13
|
20
|
13
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kemira Oyj | 1264 |
50 |
| Solenis Technologies, L.P. | 303 |
33 |
| Ecolab USA Inc. | 5820 |
25 |
| S.p.c.m. SA | 237 |
18 |
| BASF SE | 21320 |
15 |
| SNF Group | 417 |
13 |
| Solenis Technologies Cayman, L.P. | 321 |
9 |
| SOLENIS TECHNOLOGIES, L.P., Solenis International, L.P., a Delaware limited partnership, DBA Solenis Technologies, L.P. | 226 |
6 |
| Solenis Technologies Cayman, L.P. | 34 |
6 |
| Solenis Technologies Cayman, L.P. | 21 |
5 |
| Harima Chemicals, Inc. | 203 |
4 |
| Nalco Company | 533 |
4 |
| The Procter & Gamble Company | 21859 |
3 |
| Mitsubishi Chemical Corporation | 4738 |
3 |
| Buckman Laboratories International, Inc. | 240 |
3 |
| Chemgreen Innovation Inc. | 12 |
3 |
| SNF S.A.S. | 17 |
3 |
| Stora Enso Oyj | 1660 |
3 |
| Kimberly-clark Worldwide, Inc. | 5255 |
2 |
| Daikin Industries, Ltd. | 10513 |
2 |
| Other owners | 47 |