- All sections
- C - Chemistrymetallurgy
- C09B - Organic dyes or closely-related compounds for producing dyesmordantslakes
- C09B 44/00 - Azo dyes containing onium groups
Patent holdings for IPC class C09B 44/00
Total number of patents in this class: 5
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
|
|---|---|---|
| Wella Operations US LLC | 829 |
2 |
| The Procter & Gamble Company | 22043 |
1 |
| Ciba Holding Inc. | 177 |
1 |
| Wella Aktiengesellschaft | 16 |
1 |
| Other owners | 0 |