- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 231/18 - Preparation of optical isomers by stereospecific synthesis
Patent holdings for IPC class C07C 231/18
Total number of patents in this class: 70
10-year publication summary
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3
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3
|
1
|
1
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5
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1
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1
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2
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1
|
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
|
|---|---|---|
| Celgene Corporation | 1392 |
4 |
| Nippon Chemical Industrial Co., Ltd. | 293 |
4 |
| Takeda Pharmaceutical Company Limited | 2718 |
3 |
| Cambrex Karlskoga AB | 16 |
3 |
| UCB Pharma GmbH | 83 |
3 |
| Novartis AG | 10338 |
2 |
| DSM IP Assets B.V. | 5422 |
2 |
| Kaneka Corporation | 4654 |
2 |
| Aarti Healthcare Limited | 5 |
2 |
| Cambrex Profarmaco Milano | 3 |
2 |
| Nogra Pharma Limited | 121 |
2 |
| Pierre Fabre Medicament | 541 |
2 |
| Solvias AG | 28 |
2 |
| Sunovion Pharmaceuticals Inc. | 247 |
2 |
| Bausch Health Ireland Limited | 815 |
2 |
| F. Hoffmann-La Roche AG | 7847 |
1 |
| Hoffmann-La Roche Inc. | 3726 |
1 |
| Genentech, Inc. | 4090 |
1 |
| Boehringer Ingelheim International GmbH | 4494 |
1 |
| California Institute of Technology | 4023 |
1 |
| Other owners | 28 |