- All sections
- C - Chemistrymetallurgy
- C09B - Organic dyes or closely-related compounds for producing dyesmordantslakes
- C09B 57/12 - Perinones, i.e. naphthoylene-aryl-imidazoles
Patent holdings for IPC class C09B 57/12
Total number of patents in this class: 27
10-year publication summary
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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
|
1
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4
|
2
|
1
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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 | 1435 |
4 |
| BASF SE | 20940 |
2 |
| FUJIFILM Corporation | 29437 |
2 |
| Toray Industries, Inc. | 6950 |
2 |
| Daikyo Chemical Co., Ltd. | 11 |
2 |
| DNP Fine Chemicals Co., Ltd. | 178 |
2 |
| Orient Chemical Industries, Ltd. | 29 |
2 |
| CaiCai Technology Co., Ltd. | 2 |
2 |
| Nitto Denko Corporation | 8253 |
1 |
| Sumitomo Chemical Company, Limited | 9043 |
1 |
| Konica Minolta Medical & Graphic, Inc. | 775 |
1 |
| DyStar Colours Deutschland GmbH | 25 |
1 |
| Mitsubishi Gas Chemical Company, Inc. | 3468 |
1 |
| Sekisui Chemical Co., Ltd. | 3433 |
1 |
| Toyo Ink SC Holdings Co., Ltd. | 464 |
1 |
| Toyocolor Co., Ltd. | 220 |
1 |
| Sharp Kabushiki Kaisha | 18757 |
1 |
| Other owners | 0 |