- All sections
- C - Chemistrymetallurgy
- C09B - Organic dyes or closely-related compounds for producing dyesmordantslakes
- C09B 1/20 - Preparation from starting materials already containing the anthracene nucleus
Patent holdings for IPC class C09B 1/20
Total number of patents in this class: 15
10-year publication summary
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0
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0
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3
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1
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2
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0
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1
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0
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1
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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
|
|---|---|---|
| Canon Inc. | 40216 |
2 |
| Biostatus Limited | 26 |
2 |
| Dainichiseika Color & Chemicals Mfg. Co., Ltd. | 372 |
2 |
| The Procter & Gamble Company | 22031 |
1 |
| Mitsubishi Rayon Co., Ltd. | 905 |
1 |
| Mitsubishi Chemical Corporation | 4528 |
1 |
| Agfa Graphics NV | 260 |
1 |
| Enzo Life Sciences, Inc. | 161 |
1 |
| Huntsman Advanced Materials (Switzerland) GmbH | 182 |
1 |
| Liquavista B.V. | 29 |
1 |
| University of Leeds | 285 |
1 |
| CooperVision International Limited | 600 |
1 |
| Other owners | 0 |