- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 315/04 - Preparation of sulfonesPreparation of sulfoxides by reactions not involving the formation of sulfone or sulfoxide groups
Patent holdings for IPC class C07C 315/04
Total number of patents in this class: 258
10-year publication summary
|
19
|
23
|
26
|
18
|
16
|
18
|
14
|
9
|
18
|
11
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Chemical Company, Limited | 9089 |
10 |
| Kemira Oyj | 1221 |
9 |
| Amgen Inc. | 4147 |
5 |
| Central Glass Company, Limited | 1275 |
5 |
| Kappa Bioscience AS | 45 |
4 |
| Boehringer Ingelheim International GmbH | 4649 |
3 |
| Bayer AG | 3381 |
3 |
| Celgene Corporation | 1397 |
3 |
| Lek Pharmaceuticals d.d. | 199 |
3 |
| Mcmaster University | 815 |
3 |
| Soochow University | 1746 |
3 |
| Nattopharma R&D Ltd. | 3 |
3 |
| F. Hoffmann-La Roche AG | 7944 |
2 |
| 3m Innovative Properties Company | 17751 |
2 |
| Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8476 |
2 |
| National Institute of Advanced Industrial Science and Technology | 3793 |
2 |
| Takeda Pharmaceutical Company Limited | 2713 |
2 |
| ADAMA Agan Ltd. | 386 |
2 |
| Amyris, Inc. | 380 |
2 |
| Changzhou Tronly Advanced Electronic Materials Co., Ltd. | 82 |
2 |
| Other owners | 188 |