- All sections
- C - Chemistrymetallurgy
- C09B - Organic dyes or closely-related compounds for producing dyesmordantslakes
- C09B 29/16 - Naphthol-sulfonic acids
Patent holdings for IPC class C09B 29/16
Total number of patents in this class: 12
10-year publication summary
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0
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0
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4
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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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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
|
|---|---|---|
| AnaSpec Incorporated | 15 |
2 |
| Hewlett-Packard Development Company, L.P. | 25317 |
1 |
| Seiko Epson Corporation | 20081 |
1 |
| FUJIFILM Corporation | 30327 |
1 |
| Clariant Finance (BVI) Limited | 371 |
1 |
| Clariant International Ltd. | 889 |
1 |
| DyStar Colours Deutschland GmbH | 25 |
1 |
| GM Biosciences, Inc | 3 |
1 |
| Toppan Printing Co., Ltd. | 2096 |
1 |
| United States Gypsum Company | 902 |
1 |
| Bioacts Corporation | 10 |
1 |
| Other owners | 0 |