- 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: 182
10-year publication summary
|
9
|
13
|
19
|
13
|
18
|
12
|
11
|
11
|
18
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| GPCP IP Holdings LLC | 1531 |
26 |
| Lenzing Aktiengesellschaft | 499 |
19 |
| Kimberly-clark Worldwide, Inc. | 5255 |
14 |
| Kelheim Fibres GmbH | 37 |
8 |
| Eastman Chemical Company | 2097 |
5 |
| Glatfelter Gernsbach GmbH | 46 |
5 |
| Stora Enso Oyj | 1660 |
5 |
| Swedish Match North Europe AB | 499 |
5 |
| Kemira Oyj | 1264 |
4 |
| Oji Holdings Corporation | 801 |
4 |
| Nutrition & Biosciences USA 4, Inc. | 243 |
4 |
| GCF US Holdings LLC | 140 |
4 |
| Asahi Kasei Kabushiki Kaisha | 2847 |
3 |
| Glatfelter Gernsbach GmbH & Co. KG | 14 |
3 |
| Aalto University Foundation | 304 |
2 |
| Ahlstrom Corporation | 67 |
2 |
| Andritz Oy | 293 |
2 |
| Asahi Kasei Fibers Corporation | 90 |
2 |
| delfortgroup AG | 157 |
2 |
| Grasim Industries Limited | 68 |
2 |
| Other owners | 61 |