- All sections
- C - Chemistrymetallurgy
- C09B - Organic dyes or closely-related compounds for producing dyesmordantslakes
- C09B 33/12 - Disazo dyes in which the coupling component is a heterocyclic compound
Patent holdings for IPC class C09B 33/12
Total number of patents in this class: 50
10-year publication summary
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1
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1
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1
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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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1
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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
|
|---|---|---|
| FUJIFILM Corporation | 29437 |
33 |
| Nippon Kayaku Kabushiki Kaisha | 1435 |
9 |
| DyStar Colours Distribution GmbH | 168 |
3 |
| Seiko Epson Corporation | 19398 |
1 |
| Amazon Technologies, Inc. | 26762 |
1 |
| Dainichiseika Color & Chemicals Mfg. Co., Ltd. | 371 |
1 |
| FUJIFILM Imaging Colorants Limited | 213 |
1 |
| Canon Kabushiki Kaisha | 7067 |
1 |
| Other owners | 0 |