- All sections
- C - Chemistrymetallurgy
- C09B - Organic dyes or closely-related compounds for producing dyesmordantslakes
- C09B 35/215 - Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of a diaryl- or triaryl-alkane or -alkene of diarylethane or diarylethene
Patent holdings for IPC class C09B 35/215
Total number of patents in this class: 4
10-year publication summary
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Clariant Finance (BVI) Limited | 402 |
1 |
| Clariant International Ltd. | 953 |
1 |
| Ilford Imaging Switzerland GmbH | 9 |
1 |
| Rex-Tone Industries Ltd | 4 |
1 |
| Other owners | 0 |