- All sections
- C - Chemistry; metallurgy
- C09B - Organic dyes or closely-related compounds for producing dyes; mordants; lakes
- C09B 35/56 - Tetrazo dyes of the type
Patent holdings for IPC class C09B 35/56
Total number of patents in this class: 12
10-year publication summary
|
5
|
3
|
0
|
1
|
1
|
0
|
0
|
0
|
0
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| DyStar Colours Distribution GmbH | 172 |
8 |
| Nippon Kayaku Kabushiki Kaisha | 1400 |
2 |
| Polatechno Co., Ltd. | 116 |
2 |
| Other owners | 0 |