- All sections
- C - Chemistrymetallurgy
- C09B - Organic dyes or closely-related compounds for producing dyesmordantslakes
- C09B 43/42 - Preparation of azo dyes from other azo compounds by substituting hetero atoms by radicals containing other hetero atoms by substituting radicals containing hetero atoms for —CN radicals
Patent holdings for IPC class C09B 43/42
Total number of patents in this class: 3
10-year publication summary
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1
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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
|
|---|---|---|
| Huntsman International LLC | 721 |
2 |
| Huntsman Advanced Materials (Switzerland) GmbH | 182 |
1 |
| Other owners | 0 |