- All sections
- C - Chemistrymetallurgy
- C09B - Organic dyes or closely-related compounds for producing dyesmordantslakes
- C09B 62/01 - Disazo or polyazo dyes
Patent holdings for IPC class C09B 62/01
Total number of patents in this class: 10
10-year publication summary
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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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1
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1
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0
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0
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Tianjin DEK Chemical Co., Ltd | 2 |
2 |
| Ricoh Company, Ltd. | 13355 |
1 |
| DyStar Colours Deutschland GmbH | 25 |
1 |
| Everlight USA, Inc. | 4 |
1 |
| Nantong University | 277 |
1 |
| SPGPrints B.V. | 61 |
1 |
| Zhejiang Keyong Chemical Co., Ltd. | 16 |
1 |
| Zhejiang Longsheng Group Co., Ltd. | 3 |
1 |
| Shanghai Kehua Dyestuff Industry Co., Ltd. | 10 |
1 |
| Other owners | 0 |