- All sections
- D - Textilespaper
- D21J - Fibreboardmanufacture of articles from cellulosic fibrous suspensions or from papier-mâché
- D21J 1/20 - Insulating board
Patent holdings for IPC class D21J 1/20
Total number of patents in this class: 42
10-year publication summary
|
1
|
5
|
4
|
0
|
3
|
2
|
7
|
2
|
3
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| USG Interiors, LLC | 310 |
8 |
| MP Global Products, LLC | 95 |
3 |
| Cellulose Material Solutions, LLC | 8 |
2 |
| Henry Molded Products Inc. | 10 |
2 |
| Teknologian Tutkimuskeskus VTT | 248 |
2 |
| Fiberwood Oy | 12 |
2 |
| CircuSol Holding B.V. | 4 |
2 |
| Hitachi Energy Ltd. | 2341 |
2 |
| E. I. du Pont de Nemours and Company | 3862 |
1 |
| ABB Schweiz AG | 7219 |
1 |
| AFI Licensing LLC | 235 |
1 |
| Ewald Dorken AG | 247 |
1 |
| Institut Polytechnique de Grenoble | 408 |
1 |
| Saint-Gobain Isover | 626 |
1 |
| Stora Enso Oyj | 1665 |
1 |
| Technische Universität Dresden | 557 |
1 |
| United Arab Emirates University | 348 |
1 |
| UPM-Kymmene Corporation | 956 |
1 |
| Ahlstrom-munksjo Oyj | 192 |
1 |
| Kiss House Ltd | 4 |
1 |
| Other owners | 7 |