- All sections
- C - Chemistrymetallurgy
- C09B - Organic dyes or closely-related compounds for producing dyesmordantslakes
- C09B 69/02 - Dyestuff salts, e.g. salts of acid dyes with basic dyes
Patent holdings for IPC class C09B 69/02
Total number of patents in this class: 38
10-year publication summary
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0
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2
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4
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2
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1
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0
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2
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0
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1
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2
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dai Nippon Printing Co., Ltd. | 4098 |
6 |
| FUJIFILM Corporation | 29458 |
5 |
| Adeka Corporation | 1366 |
3 |
| Yamamoto Chemicals, Inc. | 50 |
2 |
| Wako Pure Chemical Industries, Ltd. | 133 |
2 |
| Ciba Holding Inc. | 177 |
2 |
| Nippon Kayaku Kabushiki Kaisha | 1438 |
2 |
| L' Oréal | 5539 |
2 |
| TDK Corporation | 6782 |
1 |
| Sumitomo Chemical Company, Limited | 9047 |
1 |
| Mitsubishi Chemical Corporation | 4526 |
1 |
| Clariant Finance (BVI) Limited | 386 |
1 |
| Day-Glo Color Corp. | 36 |
1 |
| DONGWOO FINE-CHEM Co., Ltd. | 1353 |
1 |
| Indiana University Research and Technology Corporation | 799 |
1 |
| Milliken & Company | 1194 |
1 |
| Mitsubishi Pencil Company, Limited | 760 |
1 |
| Osaka Prefecture University Public Corporation | 242 |
1 |
| Siemens Healthcare Diagnostics Inc. | 2071 |
1 |
| Sumika Technology Co., Ltd. | 4 |
1 |
| Other owners | 2 |