- All sections
- D - Textiles; paper
- D21F - Paper-making machines; methods of producing paper thereon
- D21F 1/16 - Seams thereof sewn
Patent holdings for IPC class D21F 1/16
Total number of patents in this class: 3
10-year publication summary
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0
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0
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0
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0
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0
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0
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0
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0
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Albany International Corp. | 282 |
1 |
| AstenJohnson, Inc. | 134 |
1 |
| Weavexx, LLC | 22 |
1 |
| Other owners | 0 |