- 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 17/52 - Epoxy resins
Patent holdings for IPC class D21H 17/52
Total number of patents in this class: 67
10-year publication summary
|
2
|
6
|
5
|
2
|
4
|
2
|
2
|
0
|
3
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| GPCP IP Holdings LLC | 1530 |
17 |
| Kemira Oyj | 1258 |
7 |
| Ecolab USA Inc. | 5792 |
6 |
| Solenis Technologies, L.P. | 304 |
5 |
| Dow Global Technologies LLC | 10930 |
2 |
| Kemira Chemicals, Inc. | 77 |
2 |
| Polymer Ventures, Inc. | 20 |
2 |
| Honda Motor Co., Ltd. | 26008 |
1 |
| Hewlett-Packard Development Company, L.P. | 25216 |
1 |
| Kao Corporation | 5073 |
1 |
| Billerud AB | 162 |
1 |
| Buckman Laboratories International, Inc. | 240 |
1 |
| The Chemours Company Fc, LLC | 1341 |
1 |
| Cooperatie Avebe U.A. | 79 |
1 |
| delfortgroup AG | 156 |
1 |
| Fedrigoni S.p.A. | 264 |
1 |
| GRUPPO CORDENONS S.p.A. | 46 |
1 |
| Haihong Electric Co., Ltd. | 45 |
1 |
| H.B. Fuller Company | 493 |
1 |
| Hercules Incorporated | 114 |
1 |
| Other owners | 13 |