- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 231/20 - Preparation of optical isomers by separation of optical isomers
Patent holdings for IPC class C07C 231/20
Total number of patents in this class: 35
10-year publication summary
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2
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3
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1
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1
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2
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1
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2
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0
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0
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1
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shin-Etsu Chemical Co., Ltd. | 6143 |
2 |
| Kaneka Corporation | 4775 |
2 |
| Aarti Healthcare Limited | 3 |
2 |
| ABA Chemicals Corporation | 24 |
2 |
| API Corporation | 188 |
2 |
| Daicel Corporation | 2562 |
2 |
| Kyushu University, National University Corporation | 1732 |
2 |
| UCB Pharma GmbH | 77 |
2 |
| Ube Corporation | 458 |
2 |
| Novartis AG | 10169 |
1 |
| Acturum Life Science AB | 7 |
1 |
| Arch Pharmalabs Limited | 16 |
1 |
| Daewoong Pharmaceutical Co., Ltd. | 368 |
1 |
| Dr. Reddy's Laboratories, Inc. | 158 |
1 |
| Dr. Reddy's Laboratories Limited | 556 |
1 |
| Euticals S.p.A. | 10 |
1 |
| Glenmark Generics Ltd. | 36 |
1 |
| Olon S.p.A. | 119 |
1 |
| Peking University | 1479 |
1 |
| Pitney Pharmaceuticals Pty Limited | 19 |
1 |
| Other owners | 6 |