- All sections
- C - Chemistry; metallurgy
- C09B - Organic dyes or closely-related compounds for producing dyes; mordants; lakes
- C09B 31/28 - Heterocyclic compounds
Patent holdings for IPC class C09B 31/28
Total number of patents in this class: 34
10-year publication summary
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0
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0
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1
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0
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1
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1
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1
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0
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0
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0
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Kayaku Kabushiki Kaisha | 1400 |
13 |
| FUJIFILM Corporation | 27102 |
7 |
| FUJIFILM Imaging Colorants Limited | 233 |
4 |
| Samsung Electronics Co., Ltd. | 131630 |
2 |
| BASF SE | 19740 |
2 |
| Kemira Oyj | 1167 |
2 |
| Samsung SDI Co., Ltd. | 6671 |
1 |
| DyStar Colours Distribution GmbH | 172 |
1 |
| Chromascape, LLC | 46 |
1 |
| BRADBURY, Lynn, Patricia | 6 |
1 |
| Other owners | 0 |