- All sections
- C - Chemistry; metallurgy
- C09B - Organic dyes or closely-related compounds for producing dyes; mordants; lakes
- 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: 17
10-year publication summary
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0
|
0
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3
|
1
|
2
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0
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1
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0
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1
|
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. | 38148 |
2 |
| Biostatus Limited | 27 |
2 |
| Ciba Specialty Chemicals Holding Inc. | 121 |
2 |
| Dainichiseika Color & Chemicals Mfg. Co., Ltd. | 360 |
2 |
| The Procter & Gamble Company | 22146 |
1 |
| Mitsubishi Rayon Co., Ltd. | 944 |
1 |
| Mitsubishi Chemical Corporation | 4447 |
1 |
| Agfa Graphics NV | 297 |
1 |
| Enzo Life Sciences, Inc. | 167 |
1 |
| Huntsman Advanced Materials (Switzerland) GmbH | 166 |
1 |
| Liquavista B.V. | 29 |
1 |
| University of Leeds | 286 |
1 |
| CooperVision International Limited | 608 |
1 |
| Other owners | 0 |