- All sections
- D - Textilespaper
- D21F - Paper-making machinesmethods of producing paper thereon
- D21F 1/10 - Wire-cloths
Patent holdings for IPC class D21F 1/10
Total number of patents in this class: 215
10-year publication summary
|
9
|
13
|
12
|
11
|
7
|
7
|
6
|
8
|
2
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Albany International Corp. | 255 |
47 |
| Nippon Filcon Co., Ltd. | 120 |
35 |
| Voith Patent GmbH | 2756 |
20 |
| The Procter & Gamble Company | 22043 |
17 |
| AstenJohnson, Inc. | 129 |
13 |
| Weavexx, LLC | 19 |
9 |
| Huyck Licensco, Inc., | 46 |
6 |
| GPCP IP Holdings LLC | 1641 |
5 |
| Structured I, LLC | 58 |
4 |
| Valmet Technologies Oy | 287 |
4 |
| Nippon Felt Company Limited | 8 |
4 |
| Feltri Marone S.p.A. | 14 |
3 |
| Weavexx Corporation | 5 |
3 |
| Andritz Technology and Asset Management GmbH | 90 |
2 |
| Andritz Technology & Asset Management GmbH | 2 |
2 |
| Heimbach GmbH & Co. KG | 9 |
2 |
| Metso Fabrics Inc. | 11 |
2 |
| Oji Holdings Corporation | 717 |
2 |
| Stora Enso Oyj | 1634 |
2 |
| Tamfelt PMC Oy | 4 |
2 |
| Other owners | 31 |