- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 309/05 - Sulfonic acids having sulfo groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton containing at least two sulfo groups bound to the carbon skeleton
Patent holdings for IPC class C07C 309/05
Total number of patents in this class: 71
10-year publication summary
|
5
|
5
|
6
|
5
|
5
|
10
|
3
|
10
|
3
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Seika Chemicals Co., Ltd. | 1039 |
6 |
| WisTa Laboratories Ltd. | 133 |
5 |
| Adverio Pharma GmbH | 45 |
4 |
| Apotex Inc. | 206 |
4 |
| ChemoCentryx, Inc. | 385 |
4 |
| Bristol-myers Squibb Company | 4898 |
3 |
| FUJIFILM Corporation | 29367 |
3 |
| Ecolab Inc. | 401 |
2 |
| Stepan Company | 579 |
2 |
| University of Kansas | 873 |
2 |
| Zhejiang Hisun Pharmaceutical Co., Ltd. | 276 |
2 |
| Nuvalent, Inc. | 57 |
2 |
| Hisun Pharmaceutical (Nantong) Co., Ltd. | 4 |
2 |
| Samsung Electronics Co., Ltd. | 146092 |
1 |
| Hewlett-Packard Development Company, L.P. | 25895 |
1 |
| Sumitomo Chemical Company, Limited | 9046 |
1 |
| Almirall, S.A. | 492 |
1 |
| Arkema France | 4110 |
1 |
| Assia Chemical Industries Ltd. | 180 |
1 |
| BELLUS Health Inc. | 13 |
1 |
| Other owners | 23 |