- All sections
- C - Chemistrymetallurgy
- C09B - Organic dyes or closely-related compounds for producing dyesmordantslakes
- C09B 62/513 - Disazo or polyazo dyes
Patent holdings for IPC class C09B 62/513
Total number of patents in this class: 38
10-year publication summary
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0
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1
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1
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2
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2
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2
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2
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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
|
|---|---|---|
| Zhejiang Keyong Chemical Co., Ltd. | 16 |
8 |
| Colourtex Industries Limited | 8 |
4 |
| DyStar Colours Deutschland GmbH | 25 |
4 |
| Huntsman Advanced Materials (Switzerland) GmbH | 183 |
4 |
| Shanghai Kehua Dyestuff Industry Co., Ltd. | 10 |
4 |
| DyStar Colours Distribution GmbH | 168 |
3 |
| Archroma IP GmbH | 460 |
1 |
| Dalian University of Technology | 1520 |
1 |
| DIC Corporation | 3794 |
1 |
| DyStar Textilfarben GmbH & Co. Deutschland KG | 35 |
1 |
| Everlight USA, Inc. | 5 |
1 |
| Huntsman International LLC | 719 |
1 |
| Nippon Kayaku Kabushiki Kaisha | 1432 |
1 |
| Atul Limited | 3 |
1 |
| 3 Wins Digital Technology Co., Ltd. | 1 |
1 |
| Shanghai Celludye Imaging Colorants Co., Ltd. | 1 |
1 |
| Archroma (Switzerland) GmbH | 17 |
1 |
| Other owners | 0 |