- 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 2/22 - Monocomponent artificial filaments or the like of cellulose or cellulose derivativesManufacture thereof from viscose by the dry spinning process
Patent holdings for IPC class D01F 2/22
Total number of patents in this class: 8
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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1
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0
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1
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3
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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
|
|---|---|---|
| Kolon Industries, Inc. | 1756 |
2 |
| KT & G Corporation | 2951 |
2 |
| Lenzing Aktiengesellschaft | 512 |
2 |
| Cordenka Innovations GmbH | 5 |
1 |
| OSM Shield | 2 |
1 |
| Other owners | 0 |