- All sections
- C - Chemistrymetallurgy
- C09B - Organic dyes or closely-related compounds for producing dyesmordantslakes
- C09B 31/047 - Amino benzenes containing acid groups, e.g. —COOH, —SO3H, —PO3H2, —OSO3H, —OPO2H2Salts thereof
Patent holdings for IPC class C09B 31/047
Total number of patents in this class: 13
10-year publication summary
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Unilever PLC | 3187 |
2 |
| Unilever N.V. | 3096 |
2 |
| Conopco, Inc. | 5040 |
2 |
| Sumitomo Chemical Company, Limited | 9043 |
2 |
| Chromascape, LLC | 51 |
2 |
| Mitsubishi Chemical Corporation | 4525 |
1 |
| Clariant Finance (BVI) Limited | 386 |
1 |
| Clariant International Ltd. | 932 |
1 |
| Other owners | 0 |