- All sections
- C - Chemistrymetallurgy
- C09B - Organic dyes or closely-related compounds for producing dyesmordantslakes
- C09B 29/28 - Amino naphthols
Patent holdings for IPC class C09B 29/28
Total number of patents in this class: 4
10-year publication summary
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0
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1
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0
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1
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1
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0
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0
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0
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0
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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
|
|---|---|---|
| Hewlett-Packard Development Company, L.P. | 25864 |
1 |
| Ricoh Company, Ltd. | 13283 |
1 |
| The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc. | 370 |
1 |
| Bioacts Corporation | 10 |
1 |
| Other owners | 0 |