- 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: 96
10-year publication summary
|
4
|
7
|
9
|
10
|
6
|
8
|
6
|
7
|
13
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Amgen Inc. | 4445 |
10 |
| WisTa Laboratories Ltd. | 119 |
6 |
| Apotex Inc. | 203 |
5 |
| Shin-Etsu Chemical Co., Ltd. | 6134 |
4 |
| ChemoCentryx, Inc. | 361 |
4 |
| Bristol-myers Squibb Company | 4757 |
3 |
| Daiichi Sankyo Company, Limited | 1889 |
3 |
| Shanghai Pharmaceuticals Holding Co., Ltd. | 110 |
3 |
| FUJIFILM Corporation | 30653 |
2 |
| Cytokinetics, Inc. | 251 |
2 |
| Egis Gyogyszergyar Rt. | 54 |
2 |
| Les Laboratoires Servier | 497 |
2 |
| Shanghai Institute of Pharmaceutical Industry | 127 |
2 |
| Solenis Technologies Cayman, L.P. | 321 |
2 |
| SOLENIS TECHNOLOGIES, L.P., Solenis International, L.P., a Delaware limited partnership, DBA Solenis Technologies, L.P. | 227 |
2 |
| Eleusis Therapeutics US, Inc. | 25 |
2 |
| LG Chem, Ltd. | 17967 |
1 |
| Dai Nippon Printing Co., Ltd. | 4263 |
1 |
| Yamamoto Chemicals, Inc. | 50 |
1 |
| Acer Therapeutics Inc. | 30 |
1 |
| Other owners | 38 |