- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 309/74 - Esters of sulfonic acids having sulfur atoms of esterified sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton to carbon atoms of six-membered aromatic rings being part of condensed ring systems
Patent holdings for IPC class C07C 309/74
Total number of patents in this class: 9
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 | 29399 |
1 |
| Daicel Corporation | 2348 |
1 |
| Lanxess Deutschland GmbH | 1117 |
1 |
| Les Laboratoires Servier | 538 |
1 |
| Nagasaki University | 204 |
1 |
| National University Corporation Nagoya University | 856 |
1 |
| Neuland Laboratories Limited | 32 |
1 |
| New York University | 1750 |
1 |
| Piramal Imaging SA | 27 |
1 |
| Other owners | 0 |