- All sections
- D - Textilespaper
- D01H - Spinning or twisting
- D01H 4/38 - Channels for feeding fibres to the yarn forming region
Patent holdings for IPC class D01H 4/38
Total number of patents in this class: 11
10-year publication summary
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0
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2
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0
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1
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3
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1
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1
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1
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2
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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
|
|---|---|---|
| Saurer Spinning Solutions GmbH & Co. KG | 156 |
3 |
| Maschinenfabrik Rieter AG | 374 |
2 |
| Savio Macchine Tessili S.p.A. | 33 |
2 |
| Seiko Epson Corporation | 18989 |
1 |
| Oerlikon Textile GmbH & Co. KG | 622 |
1 |
| CoreTek Fibers Ltd. | 1 |
1 |
| Rieter AG | 25 |
1 |
| Other owners | 0 |