- All sections
- C - Chemistrymetallurgy
- C09B - Organic dyes or closely-related compounds for producing dyesmordantslakes
- C09B 29/30 - Amino naphtholsulfonic acid
Patent holdings for IPC class C09B 29/30
Total number of patents in this class: 17
10-year publication summary
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2
|
1
|
1
|
0
|
2
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1
|
1
|
1
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0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 30294 |
5 |
| Nippon Kayaku Kabushiki Kaisha | 1469 |
2 |
| Bioacts Corporation | 10 |
2 |
| Nitto Denko Corporation | 8468 |
1 |
| Huntsman Advanced Materials (Switzerland) GmbH | 172 |
1 |
| Ilford Imaging Switzerland GmbH | 7 |
1 |
| National University of Singapore | 2557 |
1 |
| Rex-Tone Industries Ltd | 4 |
1 |
| The United States of America, as represented by the Secretary, Department of Health and Human Services | 2973 |
1 |
| BASF SE | 105 |
1 |
| Archroma (Switzerland) GmbH | 21 |
1 |
| Other owners | 0 |