- All sections
- C - Chemistrymetallurgy
- C09B - Organic dyes or closely-related compounds for producing dyesmordantslakes
- C09B 50/00 - Formazane dyesTetrazolium dyes
Patent holdings for IPC class C09B 50/00
Total number of patents in this class: 4
10-year publication summary
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0
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0
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2
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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 | 30653 |
2 |
| Ricoh Company, Ltd. | 13355 |
1 |
| Kyowa Hakko Chemical Co., Ltd. | 20 |
1 |
| Other owners | 0 |