- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 209/66 - Naphtho [c] pyrrolesHydrogenated naphtho [c] pyrroles with oxygen atoms in positions 1 and 3
Patent holdings for IPC class C07D 209/66
Total number of patents in this class: 17
10-year publication summary
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0
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1
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0
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1
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1
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1
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1
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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
|
|---|---|---|
| Glaxo Group Limited | 4375 |
3 |
| Zeon Corporation | 4147 |
3 |
| Amgen Inc. | 4427 |
2 |
| King Abdullah University of Science and Technology | 1852 |
2 |
| University of South Florida | 1876 |
1 |
| San-Apro Limited | 78 |
1 |
| Xiangbei Welman Pharmaceutical Co., Ltd. | 34 |
1 |
| Guangzhou Xin-chuangyi Biopharmaceutical Co., Ltd | 25 |
1 |
| Otto-von-guericke-universität Magdeburg, -körperschaft des öffentlichen Rechts- | 10 |
1 |
| Guangzhou Xin Chuang Yi New Drug R&D Co.,Ltd | 7 |
1 |
| Guangdong Hengqin Novagains Biopharmaceutical Co., Ltd. | 3 |
1 |
| Other owners | 0 |