- All sections
- C - Chemistrymetallurgy
- C09B - Organic dyes or closely-related compounds for producing dyesmordantslakes
- C09B 1/503 - Amino-hydroxy anthraquinonesEthers or esters thereof unsubstituted amino-hydroxy anthraquinone
Patent holdings for IPC class C09B 1/503
Total number of patents in this class: 14
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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4
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1
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3
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1
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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 | 1435 |
4 |
| FUJIFILM Corporation | 29437 |
2 |
| LG Chem, Ltd. | 17635 |
1 |
| Canon Inc. | 40095 |
1 |
| Dai Nippon Printing Co., Ltd. | 4091 |
1 |
| Kiwa Chemical Industry Co., Ltd. | 24 |
1 |
| University of Rochester | 1305 |
1 |
| Yangzhou Rixing Bio-Tech Co., Ltd. | 5 |
1 |
| Pili | 17 |
1 |
| CooperVision International Limited | 598 |
1 |
| Other owners | 0 |