- All sections
- C - Chemistrymetallurgy
- C09B - Organic dyes or closely-related compounds for producing dyesmordantslakes
- C09B 1/50 - Amino-hydroxy anthraquinonesEthers or esters thereof
Patent holdings for IPC class C09B 1/50
Total number of patents in this class: 15
10-year publication summary
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2
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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 |
3 |
| Mitsubishi Rayon Co., Ltd. | 907 |
2 |
| Mitsubishi Chemical Corporation | 4525 |
2 |
| BASF SE | 20940 |
1 |
| Merck Patent GmbH | 5815 |
1 |
| Canon Inc. | 40095 |
1 |
| Biotix, Inc. | 181 |
1 |
| Bundesdruckerei GmbH | 1004 |
1 |
| Liquavista B.V. | 29 |
1 |
| Milliken & Company | 1194 |
1 |
| BASF (China) Co., Ltd. | 844 |
1 |
| Other owners | 0 |