- All sections
- C - Chemistrymetallurgy
- C09B - Organic dyes or closely-related compounds for producing dyesmordantslakes
- C09B 33/18 - Trisazo or higher polyazo dyes
Patent holdings for IPC class C09B 33/18
Total number of patents in this class: 15
10-year publication summary
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4
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1
|
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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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
|
|---|---|---|
| Nippon Kayaku Kabushiki Kaisha | 1451 |
7 |
| FUJIFILM Corporation | 29839 |
3 |
| Polatechno Co., Ltd. | 110 |
3 |
| Seiko Epson Corporation | 19704 |
1 |
| Amazon Technologies, Inc. | 27247 |
1 |
| Other owners | 0 |