- 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 27/30 - Multi-ply
Patent holdings for IPC class D21H 27/30
Total number of patents in this class: 992
10-year publication summary
|
70
|
76
|
85
|
63
|
80
|
59
|
67
|
76
|
53
|
40
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Procter & Gamble Company | 22043 |
187 |
| Stora Enso Oyj | 1647 |
68 |
| GPCP IP Holdings LLC | 1637 |
61 |
| Kimberly-clark Worldwide, Inc. | 5502 |
60 |
| Daio Paper Corporation | 1380 |
56 |
| First Quality Tissue, LLC | 156 |
41 |
| Essity Hygiene and Health Aktiebolag | 2041 |
19 |
| Oji Holdings Corporation | 725 |
17 |
| Mercer International Inc. | 30 |
16 |
| Billerud AB | 126 |
15 |
| Billerudkorsnas AB | 87 |
13 |
| The Chemours Company Fc, LLC | 1241 |
13 |
| E. I. du Pont de Nemours and Company | 4050 |
12 |
| WestRock MWV, LLC | 336 |
11 |
| Glatfelter Corporation | 69 |
11 |
| Structured I, LLC | 58 |
9 |
| Kemira Oyj | 1207 |
8 |
| Mondi AG | 170 |
8 |
| Nippon Paper Industries Co., Ltd. | 832 |
7 |
| Smart Planet Technologies, Inc. | 35 |
7 |
| Other owners | 353 |