- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 309/35 - Naphthalene sulfonic acids
Patent holdings for IPC class C07C 309/35
Total number of patents in this class: 84
10-year publication summary
|
8
|
4
|
7
|
9
|
10
|
6
|
8
|
5
|
6
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Amgen Inc. | 4074 |
9 |
| Apotex Inc. | 206 |
6 |
| WisTa Laboratories Ltd. | 133 |
5 |
| ChemoCentryx, Inc. | 385 |
4 |
| Bristol-myers Squibb Company | 4898 |
3 |
| Shin-Etsu Chemical Co., Ltd. | 5658 |
3 |
| Daiichi Sankyo Company, Limited | 1869 |
3 |
| Shanghai Pharmaceuticals Holding Co., Ltd. | 104 |
3 |
| FUJIFILM Corporation | 29367 |
2 |
| Cytokinetics, Inc. | 277 |
2 |
| Egis Gyogyszergyar Rt. | 54 |
2 |
| Les Laboratoires Servier | 542 |
2 |
| Shanghai Institute of Pharmaceutical Industry | 129 |
2 |
| Eleusis Therapeutics US, Inc. | 21 |
2 |
| LG Chem, Ltd. | 17632 |
1 |
| Dai Nippon Printing Co., Ltd. | 4082 |
1 |
| Yamamoto Chemicals, Inc. | 50 |
1 |
| Acer Therapeutics Inc. | 31 |
1 |
| Ajou University Industry-academic Cooperation Foundation | 1039 |
1 |
| Arkema France | 4110 |
1 |
| Other owners | 30 |