- 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 11/14 - Secondary fibres
Patent holdings for IPC class D21H 11/14
Total number of patents in this class: 378
10-year publication summary
|
17
|
22
|
36
|
21
|
52
|
37
|
40
|
63
|
47
|
22
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kemira Oyj | 1205 |
43 |
| GPCP IP Holdings LLC | 1631 |
22 |
| Seiko Epson Corporation | 19367 |
20 |
| Footprint International, LLC | 78 |
17 |
| Stora Enso Oyj | 1643 |
15 |
| Fiberlean Technologies Limited | 114 |
11 |
| Eastman Chemical Company | 2218 |
10 |
| UPM-Kymmene Corporation | 938 |
8 |
| Kimberly-clark Worldwide, Inc. | 5498 |
7 |
| Uni-Charm Corporation | 600 |
6 |
| Enzymatic Deinking Technologies, LLC | 43 |
6 |
| Valmet AB | 510 |
6 |
| Soane Materials LLC | 21 |
6 |
| Billerud AB | 126 |
5 |
| Ecolab USA Inc. | 5491 |
5 |
| Nippon Paper Industries Co., Ltd. | 830 |
5 |
| Solenis Technologies, L.P. | 336 |
5 |
| First Quality Tissue, LLC | 156 |
4 |
| Lenzing Aktiengesellschaft | 522 |
4 |
| Mayr-Melnhof Karton Aktiengesellschaft | 226 |
4 |
| Other owners | 169 |