- All sections
- D - Textiles; paper
- D21F - Paper-making machines; methods of producing paper thereon
- D21F 1/18 - Shaking-apparatus for wire-cloths and associated parts
Patent holdings for IPC class D21F 1/18
Total number of patents in this class: 14
10-year publication summary
|
4
|
0
|
0
|
3
|
0
|
1
|
0
|
1
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| International Paper Company | 815 |
4 |
| Voith Patent GmbH | 2734 |
4 |
| Valmet Technologies, Inc. | 160 |
2 |
| Coldwater Seals, Inc. | 7 |
2 |
| United States Gypsum Company | 1003 |
1 |
| Bmic LLC | 682 |
1 |
| Other owners | 0 |