- All sections
- C - Chemistry; metallurgy
- C09B - Organic dyes or closely-related compounds for producing dyes; mordants; lakes
- C09B 57/12 - Perinones, i.e. naphthoylene-aryl-imidazoles
Patent holdings for IPC class C09B 57/12
Total number of patents in this class: 25
10-year publication summary
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0
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0
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0
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0
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3
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3
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5
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1
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4
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1
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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 |
4 |
| BASF SE | 19740 |
2 |
| FUJIFILM Corporation | 27102 |
2 |
| Toray Industries, Inc. | 6652 |
2 |
| Daikyo Chemical Co., Ltd. | 10 |
2 |
| Orient Chemical Industries, Ltd. | 34 |
2 |
| CaiCai Technology Co., Ltd. | 2 |
2 |
| Nitto Denko Corporation | 7879 |
1 |
| Sumitomo Chemical Company, Limited | 8808 |
1 |
| Konica Minolta Medical & Graphic, Inc. | 986 |
1 |
| DNP Fine Chemicals Co., Ltd. | 162 |
1 |
| DyStar Colours Deutschland GmbH | 25 |
1 |
| Sekisui Chemical Co., Ltd. | 3159 |
1 |
| Toyo Ink SC Holdings Co., Ltd. | 505 |
1 |
| Toyocolor Co., Ltd. | 156 |
1 |
| Sharp Kabushiki Kaisha | 18957 |
1 |
| Other owners | 0 |