- All sections
- C - Chemistrymetallurgy
- C07B - General methods of organic chemistryapparatus therefor
- C07B 57/00 - Separation of optically-active organic compounds
Patent holdings for IPC class C07B 57/00
Total number of patents in this class: 401
10-year publication summary
|
22
|
32
|
28
|
31
|
29
|
20
|
12
|
11
|
10
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Daiichi Sankyo Company, Limited | 1855 |
19 |
| Sumitomo Chemical Company, Limited | 9018 |
15 |
| Daicel Corporation | 2332 |
12 |
| Amgen Inc. | 4055 |
9 |
| Bayer AG | 3308 |
8 |
| Kaneka Corporation | 4484 |
7 |
| API Corporation | 224 |
7 |
| Central Glass Company, Limited | 1264 |
6 |
| F. Hoffmann-La Roche AG | 7923 |
5 |
| BRANDEIS University | 333 |
5 |
| The Clorox Company | 952 |
5 |
| Centre National de La Recherche Scientifique | 10350 |
4 |
| Council of Scientific & Industrial Research | 1423 |
4 |
| Intra-Cellular Therapies, Inc. | 410 |
4 |
| Max-Planck-Gesellschaft zur Forderung der Wissenschaften e.V. | 1769 |
4 |
| PTC Therapeutics, Inc. | 484 |
4 |
| Tokyo University of Science Educational Foundation Administrative Organization | 106 |
4 |
| Precision Pharmaceuticals, Inc. | 14 |
4 |
| BASF SE | 20803 |
3 |
| DSM IP Assets B.V. | 5603 |
3 |
| Other owners | 269 |