- 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 27/00 - Special paper not otherwise provided for, e.g. made by multi-step processes
Patent holdings for IPC class D21H 27/00
Total number of patents in this class: 2261
10-year publication summary
|
184
|
224
|
188
|
213
|
193
|
185
|
164
|
121
|
102
|
103
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Procter & Gamble Company | 21880 |
520 |
| Kimberly-clark Worldwide, Inc. | 5259 |
263 |
| GPCP IP Holdings LLC | 1529 |
138 |
| Daio Paper Corporation | 1415 |
101 |
| First Quality Tissue, LLC | 166 |
62 |
| Essity Hygiene and Health Aktiebolag | 2319 |
55 |
| Japan Tobacco Inc. | 3569 |
46 |
| KT & G Corporation | 3166 |
41 |
| Nippon Paper Industries Co., Ltd. | 854 |
32 |
| Oji Holdings Corporation | 803 |
30 |
| UPM-Kymmene Corporation | 1004 |
26 |
| delfortgroup AG | 157 |
25 |
| Mitsubishi Paper Mills Limited | 225 |
23 |
| Kemira Oyj | 1262 |
22 |
| Structured I, LLC | 62 |
20 |
| Voith Patent GmbH | 2742 |
20 |
| Stora Enso Oyj | 1660 |
18 |
| Kuraray Co., Ltd. | 3600 |
17 |
| Shin-Etsu Chemical Co., Ltd. | 6134 |
15 |
| Nippon Paper Papylia Co., Ltd. | 38 |
14 |
| Other owners | 773 |