- All sections
- D - Textilespaper
- D21F - Paper-making machinesmethods of producing paper thereon
- D21F 9/02 - Complete machines for making continuous webs of paper of the Fourdrinier type
Patent holdings for IPC class D21F 9/02
Total number of patents in this class: 105
10-year publication summary
|
3
|
6
|
4
|
9
|
10
|
8
|
3
|
6
|
9
|
17
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Seiko Epson Corporation | 20528 |
19 |
| Voith Patent GmbH | 2743 |
17 |
| The Procter & Gamble Company | 21870 |
10 |
| Mondi AG | 233 |
9 |
| Intpro, LLC | 23 |
5 |
| Nippon Paper Industries Co., Ltd. | 854 |
4 |
| Valmet AB | 565 |
4 |
| Stora Enso Oyj | 1662 |
3 |
| Kimberly-clark Worldwide, Inc. | 5254 |
2 |
| Fcpapel LLC | 2 |
2 |
| Huyck Licensco, Inc., | 46 |
2 |
| Oji Holdings Corporation | 810 |
2 |
| Cobank, Acb, AS Administrative Agent | 35 |
2 |
| Fibu AB | 3 |
2 |
| Honeywell International Inc. | 12767 |
1 |
| Centre National de La Recherche Scientifique | 11122 |
1 |
| Hewlett-Packard Development Company, L.P. | 25121 |
1 |
| Allimand | 4 |
1 |
| Andritz Kuesters GmbH | 14 |
1 |
| Arjowiggins Healthcare | 4 |
1 |
| Other owners | 16 |