- 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: 2194
10-year publication summary
|
159
|
176
|
202
|
173
|
206
|
185
|
178
|
159
|
117
|
78
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Procter & Gamble Company | 22006 |
507 |
| Kimberly-clark Worldwide, Inc. | 5451 |
253 |
| GPCP IP Holdings LLC | 1633 |
140 |
| Daio Paper Corporation | 1389 |
100 |
| First Quality Tissue, LLC | 156 |
56 |
| Essity Hygiene and Health Aktiebolag | 2050 |
53 |
| Japan Tobacco Inc. | 3600 |
49 |
| KT & G Corporation | 2665 |
39 |
| Nippon Paper Industries Co., Ltd. | 834 |
31 |
| delfortgroup AG | 151 |
25 |
| Oji Holdings Corporation | 731 |
23 |
| UPM-Kymmene Corporation | 943 |
23 |
| Mitsubishi Paper Mills Limited | 230 |
22 |
| Kemira Oyj | 1216 |
20 |
| Structured I, LLC | 58 |
19 |
| Kuraray Co., Ltd. | 3518 |
18 |
| Stora Enso Oyj | 1658 |
18 |
| Shin-Etsu Chemical Co., Ltd. | 5695 |
15 |
| International Paper Company | 785 |
14 |
| Nippon Paper Papylia Co., Ltd. | 38 |
14 |
| Other owners | 755 |