- All sections
- C - Chemistrymetallurgy
- C09B - Organic dyes or closely-related compounds for producing dyesmordantslakes
- C09B 1/28 - Dyes with amino groups substituted by hydrocarbon radicals substituted by alkyl, aralkyl, or cyclo-alkyl groups
Patent holdings for IPC class C09B 1/28
Total number of patents in this class: 19
10-year publication summary
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1
|
1
|
0
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3
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3
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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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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Kayaku Kabushiki Kaisha | 1474 |
4 |
| Merck Patent GmbH | 5755 |
3 |
| Mitsubishi Chemical Corporation | 4757 |
3 |
| Mitsubishi Rayon Co., Ltd. | 845 |
2 |
| Amazon Technologies, Inc. | 28299 |
1 |
| Biostatus Limited | 26 |
1 |
| e Ink Corporation | 1559 |
1 |
| Liquavista B.V. | 26 |
1 |
| Sekisui Chemical Co., Ltd. | 3656 |
1 |
| Pili | 21 |
1 |
| Heubach Holding Switzerland AG (Ltd) | 3 |
1 |
| Other owners | 0 |