- 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: 349
10-year publication summary
|
33
|
37
|
21
|
23
|
22
|
15
|
16
|
14
|
11
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Boehringer Ingelheim International GmbH | 4493 |
9 |
| Bayer Cropscience AG | 1846 |
9 |
| Enanta Pharmaceuticals, Inc. | 429 |
8 |
| Bayer AG | 3495 |
7 |
| Sumitomo Chemical Company, Limited | 8996 |
7 |
| Takeda Pharmaceutical Company Limited | 2715 |
7 |
| The Regents of the University of California | 20720 |
6 |
| Merck Patent GmbH | 5725 |
6 |
| FUJIFILM Corporation | 30512 |
6 |
| Kemira Oyj | 1258 |
6 |
| The United States of America, as represented by the Secretary, Department of Health and Human Services | 2999 |
6 |
| Sanofi | 4293 |
6 |
| F. Hoffmann-La Roche AG | 7836 |
5 |
| Nitto Denko Corporation | 8526 |
5 |
| Nihon Nohyaku Co., Ltd. | 324 |
5 |
| Pitney Pharmaceuticals Pty Limited | 19 |
5 |
| The Salk Institute for Biological Studies | 450 |
5 |
| Lead Pharma Holding B.V. | 20 |
5 |
| Xwpharma Ltd. | 65 |
5 |
| Hangzhou Phecdamed Co., Ltd. | 20 |
5 |
| Other owners | 226 |