- 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 11/04 - Kraft or sulfate pulp
Patent holdings for IPC class D21H 11/04
Total number of patents in this class: 464
10-year publication summary
|
40
|
37
|
40
|
39
|
39
|
37
|
44
|
43
|
34
|
40
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Procter & Gamble Company | 21862 |
55 |
| Kimberly-clark Worldwide, Inc. | 5257 |
39 |
| GP Cellulose GmbH | 86 |
31 |
| GPCP IP Holdings LLC | 1526 |
28 |
| Stora Enso Oyj | 1661 |
21 |
| Fiberlean Technologies Limited | 98 |
19 |
| Billerud AB | 166 |
17 |
| Nippon Paper Industries Co., Ltd. | 855 |
16 |
| First Quality Tissue, LLC | 166 |
15 |
| Mondi AG | 225 |
13 |
| WestRock MWV, LLC | 332 |
12 |
| Billerudkorsnas AB | 88 |
11 |
| Oji Holdings Corporation | 807 |
11 |
| GCF US Holdings LLC | 140 |
11 |
| Klabin SA | 21 |
10 |
| Daio Paper Corporation | 1420 |
8 |
| Suzano S.A. | 193 |
8 |
| UPM-Kymmene Corporation | 1007 |
7 |
| Raiz - Instituto de Investigação da Floresta e Papel | 25 |
5 |
| Kemira Oyj | 1262 |
4 |
| Other owners | 123 |