- All sections
- C - Chemistrymetallurgy
- C09B - Organic dyes or closely-related compounds for producing dyesmordantslakes
- C09B 1/34 - Dyes with amino groups substituted by hydrocarbon radicals substituted by aryl groups sulfonated
Patent holdings for IPC class C09B 1/34
Total number of patents in this class: 4
10-year publication summary
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0
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1
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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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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
|
|---|---|---|
| Dai Nippon Printing Co., Ltd. | 4091 |
2 |
| ATTO-TEC GmbH | 6 |
1 |
| CooperVision International Limited | 598 |
1 |
| Other owners | 0 |