- All sections
- C - Chemistrymetallurgy
- C09B - Organic dyes or closely-related compounds for producing dyesmordantslakes
- C09B 43/40 - Preparation of azo dyes from other azo compounds by substituting hetero atoms by radicals containing other hetero atoms
Patent holdings for IPC class C09B 43/40
Total number of patents in this class: 9
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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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
|
|---|---|---|
| Mitsubishi Chemical Corporation | 4612 |
2 |
| FUJIFILM Corporation | 29839 |
1 |
| Sumitomo Chemical Company, Limited | 9109 |
1 |
| Mitsubishi Rayon Co., Ltd. | 892 |
1 |
| JSR Corporation | 2542 |
1 |
| FUJIFILM Imaging Colorants Limited | 203 |
1 |
| Nippon Kayaku Kabushiki Kaisha | 1451 |
1 |
| L' Oréal | 5614 |
1 |
| Other owners | 0 |