- All sections
- C - Chemistrymetallurgy
- C09B - Organic dyes or closely-related compounds for producing dyesmordantslakes
- C09B 35/18 - Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of biphenyl from two coupling components of the same type from heterocyclic compounds
Patent holdings for IPC class C09B 35/18
Total number of patents in this class: 5
10-year publication summary
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| DyStar Colours Distribution GmbH | 160 |
2 |
| FUJIFILM Corporation | 30866 |
1 |
| Clariant Finance (BVI) Limited | 337 |
1 |
| Dainichiseika Color & Chemicals Mfg. Co., Ltd. | 386 |
1 |
| Other owners | 0 |