- 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: 259
10-year publication summary
|
23
|
26
|
18
|
16
|
18
|
14
|
9
|
18
|
12
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Chemical Company, Limited | 9053 |
10 |
| Kemira Oyj | 1231 |
10 |
| Amgen Inc. | 4301 |
5 |
| Central Glass Company, Limited | 1282 |
5 |
| Kappa Bioscience AS | 44 |
4 |
| Boehringer Ingelheim International GmbH | 4579 |
3 |
| Bayer AG | 3409 |
3 |
| Celgene Corporation | 1392 |
3 |
| Lek Pharmaceuticals d.d. | 192 |
3 |
| Mcmaster University | 823 |
3 |
| Soochow University | 1758 |
3 |
| Nattopharma R&D Ltd. | 3 |
3 |
| F. Hoffmann-La Roche AG | 7875 |
2 |
| 3m Innovative Properties Company | 17592 |
2 |
| Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8475 |
2 |
| National Institute of Advanced Industrial Science and Technology | 3795 |
2 |
| Takeda Pharmaceutical Company Limited | 2713 |
2 |
| ADAMA Agan Ltd. | 406 |
2 |
| Amyris, Inc. | 370 |
2 |
| Arcus Biosciences, Inc. | 148 |
2 |
| Other owners | 188 |