- All sections
- D - Textilespaper
- D01F - Chemical features in the manufacture of man-made filaments, threads, fibres, bristles or ribbonsapparatus specially adapted for the manufacture of carbon filaments
- D01F 2/12 - Addition of delustring agents to the spinning solution
Patent holdings for IPC class D01F 2/12
Total number of patents in this class: 4
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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1
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0
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0
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0
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1
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0
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Lenzing Aktiengesellschaft | 513 |
1 |
| Yibin Grace Co., Ltd. | 27 |
1 |
| Yibin Grace Group Co., Ltd. | 6 |
1 |
| Acegreen Eco-material Technology Co., Ltd. | 1 |
1 |
| Other owners | 0 |