- 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: 13
10-year publication summary
|
5
|
2
|
0
|
0
|
1
|
0
|
1
|
0
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Voith Patent GmbH | 2759 |
3 |
| Albany International Corp. | 253 |
2 |
| AstenJohnson, Inc. | 128 |
2 |
| Buckman Laboratories International, Inc. | 237 |
2 |
| MainTech Co., Ltd. | 65 |
2 |
| Dubois Chemicals, Inc. | 176 |
1 |
| Solenis Technologies, L.P. | 335 |
1 |
| Other owners | 0 |