- All sections
- C - Chemistrymetallurgy
- C09B - Organic dyes or closely-related compounds for producing dyesmordantslakes
- C09B 35/03 - Disazo dyes characterised by two coupling components of the same type in which the coupling component is a heterocyclic compound
Patent holdings for IPC class C09B 35/03
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
|
|---|---|---|
| FUJIFILM Corporation | 29437 |
6 |
| Kemira Oyj | 1207 |
2 |
| Seiko Epson Corporation | 19398 |
1 |
| Clariant Finance (BVI) Limited | 386 |
1 |
| Clariant International Ltd. | 932 |
1 |
| Dainichiseika Color & Chemicals Mfg. Co., Ltd. | 371 |
1 |
| Sumika Color Co., Ltd. | 6 |
1 |
| Other owners | 0 |