- All sections
- C - Chemistrymetallurgy
- C09B - Organic dyes or closely-related compounds for producing dyesmordantslakes
- C09B 43/12 - Preparation of azo dyes from other azo compounds by acylation of amino groups
Patent holdings for IPC class C09B 43/12
Total number of patents in this class: 3
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
|
|---|---|---|
| Canon Inc. | 42633 |
1 |
| Canon Kabushiki Kaisha | 7258 |
1 |
| Evonik Operations GmbH | 4283 |
1 |
| Other owners | 0 |