- All sections
- C - Chemistrymetallurgy
- C09B - Organic dyes or closely-related compounds for producing dyesmordantslakes
- C09B 62/515 - Metal complex azo dyes
Patent holdings for IPC class C09B 62/515
Total number of patents in this class: 6
10-year publication summary
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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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2
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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
|
|---|---|---|
| E. I. du Pont de Nemours and Company | 4050 |
1 |
| DyStar Colours Deutschland GmbH | 25 |
1 |
| Huntsman Advanced Materials (Switzerland) GmbH | 181 |
1 |
| Huntsman International LLC | 721 |
1 |
| Nippon Kayaku Kabushiki Kaisha | 1435 |
1 |
| Archroma (Switzerland) GmbH | 17 |
1 |
| Other owners | 0 |