- All sections
- C - Chemistrymetallurgy
- C09B - Organic dyes or closely-related compounds for producing dyesmordantslakes
- C09B 31/18 - Trisazo dyes from a coupling component "D" containing a directive amino group
Patent holdings for IPC class C09B 31/18
Total number of patents in this class: 20
10-year publication summary
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1
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0
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1
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0
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0
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2
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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
|
|---|---|---|
| FUJIFILM Corporation | 30327 |
6 |
| BASF SE | 21165 |
2 |
| Mitsubishi Chemical Corporation | 4665 |
2 |
| Nippon Kayaku Kabushiki Kaisha | 1465 |
2 |
| LG Chem, Ltd. | 17883 |
1 |
| Merck Patent GmbH | 5669 |
1 |
| Amazon Technologies, Inc. | 27873 |
1 |
| Archroma IP GmbH | 463 |
1 |
| Clariant International Ltd. | 889 |
1 |
| Kemira Oyj | 1244 |
1 |
| Polatechno Co., Ltd. | 109 |
1 |
| Chromascape, LLC | 45 |
1 |
| Other owners | 0 |