- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 317/44 - SulfonesSulfoxides having sulfone or sulfoxide groups and carboxyl groups bound to the same carbon skeleton
Patent holdings for IPC class C07C 317/44
Total number of patents in this class: 345
10-year publication summary
|
33
|
37
|
21
|
23
|
22
|
15
|
15
|
14
|
11
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Boehringer Ingelheim International GmbH | 4496 |
9 |
| Bayer Cropscience AG | 1882 |
9 |
| Enanta Pharmaceuticals, Inc. | 433 |
8 |
| Sumitomo Chemical Company, Limited | 9013 |
7 |
| Takeda Pharmaceutical Company Limited | 2716 |
7 |
| F. Hoffmann-La Roche AG | 7841 |
6 |
| The Regents of the University of California | 20587 |
6 |
| Merck Patent GmbH | 5669 |
6 |
| Bayer AG | 3455 |
6 |
| FUJIFILM Corporation | 30296 |
6 |
| Kemira Oyj | 1241 |
6 |
| The United States of America, as represented by the Secretary, Department of Health and Human Services | 2976 |
6 |
| Sanofi | 4249 |
6 |
| Nitto Denko Corporation | 8470 |
5 |
| Nihon Nohyaku Co., Ltd. | 325 |
5 |
| Pitney Pharmaceuticals Pty Limited | 19 |
5 |
| The Salk Institute for Biological Studies | 452 |
5 |
| Lead Pharma Holding B.V. | 21 |
5 |
| Xwpharma Ltd. | 64 |
5 |
| Hangzhou Phecdamed Co., Ltd. | 19 |
5 |
| Other owners | 222 |