- All sections
- C - Chemistrymetallurgy
- C09B - Organic dyes or closely-related compounds for producing dyesmordantslakes
- C09B 33/02 - Disazo dyes
Patent holdings for IPC class C09B 33/02
Total number of patents in this class: 9
10-year publication summary
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1
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0
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0
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0
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0
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0
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0
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1
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0
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0
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Unilever PLC | 3187 |
1 |
| Unilever N.V. | 3096 |
1 |
| Conopco, Inc. | 5040 |
1 |
| Nitto Denko Corporation | 8253 |
1 |
| Clariant International Ltd. | 932 |
1 |
| Dainichiseika Color & Chemicals Mfg. Co., Ltd. | 371 |
1 |
| Nippon Kayaku Kabushiki Kaisha | 1435 |
1 |
| Solvay Acetow GmbH | 27 |
1 |
| Sumitomo Bakelite Co., Ltd. | 1498 |
1 |
| Other owners | 0 |