- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 309/57 - Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing carboxyl groups bound to the carbon skeleton
Patent holdings for IPC class C07C 309/57
Total number of patents in this class: 3
10-year publication summary
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 29713 |
2 |
| Central Glass Company, Limited | 1273 |
1 |
| Other owners | 0 |