- All sections
- D - Textiles; paper
- D04H - Making textile fabrics, e.g. from fibres or filamentary material; fabrics made by such processes or apparatus, e.g. felts, non-woven fabrics; cotton-wool; wadding
- D04H 1/549 - Polyamides
Patent holdings for IPC class D04H 1/549
Total number of patents in this class: 20
10-year publication summary
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0
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0
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1
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2
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2
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3
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4
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2
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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
|
|---|---|---|
| Carl Freudenberg KG | 1354 |
3 |
| Zephyros, Inc. | 634 |
2 |
| Toray Advanced Materials Korea Inc. | 240 |
1 |
| Colbond B.V. | 8 |
1 |
| INVISTA North America S.a.r.l. | 177 |
1 |
| Kingfa SCI & Tech Co. Ltd. | 576 |
1 |
| Kuraray Co., Ltd. | 3459 |
1 |
| Nippon Kayaku Kabushiki Kaisha | 1427 |
1 |
| SCA Hygiene Products AB | 685 |
1 |
| South China University of Technology | 1694 |
1 |
| Teijin Aramid B.V. | 182 |
1 |
| Toyobo Co., Ltd. | 2415 |
1 |
| Toyota Tsusho Corporation | 170 |
1 |
| Voith Patent GmbH | 2734 |
1 |
| INVISTA Textiles (U.K.) Limited | 252 |
1 |
| Guangzhou Fiber Product Testing and Research Institute | 1 |
1 |
| Yanfeng International Automotive Technology Co., Ltd. | 106 |
1 |
| Other owners | 0 |