- 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 13/08 - Synthetic cellulose fibres from regenerated cellulose
Patent holdings for IPC class D21H 13/08
Total number of patents in this class: 178
10-year publication summary
|
9
|
11
|
18
|
12
|
16
|
12
|
10
|
11
|
17
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| GPCP IP Holdings LLC | 1545 |
27 |
| Lenzing Aktiengesellschaft | 510 |
19 |
| Kimberly-clark Worldwide, Inc. | 5281 |
14 |
| Kelheim Fibres GmbH | 37 |
8 |
| Eastman Chemical Company | 2091 |
5 |
| Glatfelter Gernsbach GmbH | 45 |
5 |
| Stora Enso Oyj | 1631 |
5 |
| Swedish Match North Europe AB | 486 |
5 |
| Oji Holdings Corporation | 773 |
4 |
| Nutrition & Biosciences USA 4, Inc. | 233 |
4 |
| GCF US Holdings LLC | 144 |
4 |
| Asahi Kasei Kabushiki Kaisha | 2779 |
3 |
| Glatfelter Gernsbach GmbH & Co. KG | 14 |
3 |
| Kemira Oyj | 1232 |
3 |
| Aalto University Foundation | 308 |
2 |
| Ahlstrom Corporation | 68 |
2 |
| Asahi Kasei Fibers Corporation | 95 |
2 |
| delfortgroup AG | 154 |
2 |
| Grasim Industries Limited | 67 |
2 |
| Greenbutts LLC | 16 |
2 |
| Other owners | 57 |