- All sections
- D - Textilespaper
- D21F - Paper-making machinesmethods of producing paper thereon
- D21F 11/08 - Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibreboard production, on paper-making machines of the cylinder type paper or board consisting of two or more layers
Patent holdings for IPC class D21F 11/08
Total number of patents in this class: 44
10-year publication summary
|
2
|
5
|
2
|
4
|
3
|
7
|
5
|
4
|
1
|
0
|
| 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 |
11 |
| Arjowiggins Security | 126 |
5 |
| Giesecke+Devrient Currency Technology GmbH | 885 |
5 |
| Mayr-Melnhof Karton Aktiengesellschaft | 226 |
4 |
| Kimberly-clark Worldwide, Inc. | 5503 |
2 |
| Banque de France | 44 |
2 |
| Caraustar Industrial and Consumer Products Group, Inc. | 12 |
2 |
| Fedrigoni S.p.A. | 269 |
2 |
| Stora Enso Oyj | 1634 |
2 |
| Voith Patent GmbH | 2756 |
2 |
| Plastic Free Packaging Pty Ltd | 2 |
2 |
| Chan Li Machinery Co., Ltd. | 33 |
1 |
| Eternit N.V. | 32 |
1 |
| GAMBINI S.p.A. | 23 |
1 |
| Giesecke & Devrient GmbH | 884 |
1 |
| Etex Services NV | 57 |
1 |
| Other owners | 0 |