- All sections
- C - Chemistry; metallurgy
- C09B - Organic dyes or closely-related compounds for producing dyes; mordants; lakes
- C09B 33/06 - Disazo dyes in which the coupling component is a diamine or polyamine
Patent holdings for IPC class C09B 33/06
Total number of patents in this class: 16
10-year publication summary
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Kayaku Kabushiki Kaisha | 1400 |
9 |
| DyStar Colours Distribution GmbH | 172 |
2 |
| FUJIFILM Corporation | 27102 |
1 |
| Mitsubishi Chemical Corporation | 4313 |
1 |
| Huntsman Advanced Materials (Switzerland) GmbH | 131 |
1 |
| Universite Catholique de Louvain | 293 |
1 |
| Wetlands Incubator sprl | 2 |
1 |
| Other owners | 0 |