- All sections
- D - Textiles; paper
- D21J - Fibreboard; manufacture of articles from cellulosic fibrous suspensions or from papier-mâché
- D21J 7/00 - Manufacture of hollow articles from fibre suspensions or papier-mâché by deposition of fibres in or on a wire-net mould
Patent holdings for IPC class D21J 7/00
Total number of patents in this class: 216
10-year publication summary
|
18
|
5
|
25
|
13
|
24
|
16
|
23
|
32
|
35
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Footprint International, LLC | 76 |
20 |
| Pulpex Limited | 28 |
19 |
| Celwise AB | 25 |
18 |
| Stora Enso Oyj | 1598 |
12 |
| Hewlett-Packard Development Company, L.P. | 27484 |
9 |
| Huhtamaki Molded Fiber Technology B.V. | 58 |
9 |
| Varden Process Pty Ltd | 31 |
8 |
| Diageo Great Britain Limited | 44 |
6 |
| SIG Technology AG | 325 |
6 |
| Krones AG | 2105 |
5 |
| OrganoClick AB | 73 |
5 |
| Brødrene Hartmann A/S | 45 |
5 |
| KIEFEL GmbH | 133 |
4 |
| Acorn West LLC | 10 |
4 |
| Natural Resources (2000) Limited | 4 |
4 |
| Alpla Werke Alwin Lehner GmbH & Co. KG | 346 |
3 |
| Nanyang Technological University | 1883 |
3 |
| Changzhou City Cheng Xin Environmental Protection Technology Co., Ltd. | 19 |
3 |
| Zume, Inc. | 50 |
3 |
| PAPACKS SALES GmbH | 33 |
3 |
| Other owners | 67 |