- All sections
- D - Textilespaper
- D21F - Paper-making machinesmethods of producing paper thereon
- D21F 1/30 - Protecting wire-cloths from mechanical damage
Patent holdings for IPC class D21F 1/30
Total number of patents in this class: 12
10-year publication summary
|
2
|
0
|
0
|
1
|
0
|
1
|
0
|
0
|
0
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Voith Patent GmbH | 2740 |
3 |
| Buckman Laboratories International, Inc. | 239 |
2 |
| MainTech Co., Ltd. | 66 |
2 |
| Albany International Corp. | 236 |
1 |
| AstenJohnson, Inc. | 121 |
1 |
| Dubois Chemicals, Inc. | 172 |
1 |
| Huyck Licensco, Inc., | 46 |
1 |
| Solenis Technologies, L.P. | 304 |
1 |
| Other owners | 0 |