- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 497/22 - Heterocyclic compounds containing in the condensed system at least one hetero ring having oxygen and sulfur atoms as the only ring hetero atoms in which the condensed system contains four or more hetero rings
Patent holdings for IPC class C07D 497/22
Total number of patents in this class: 33
10-year publication summary
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3
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2
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1
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1
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2
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2
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6
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2
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2
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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
|
|---|---|---|
| Gilead Sciences, Inc. | 2226 |
5 |
| AstraZeneca AB | 2819 |
4 |
| Sumitomo Chemical Company, Limited | 8968 |
3 |
| The Regents of the University of Michigan | 4997 |
3 |
| Ascentage Pharma (Suzhou) Co., Ltd. | 227 |
3 |
| Ascentage Pharma Group Corp Limited | 149 |
3 |
| LG Chem, Ltd. | 17929 |
1 |
| Janssen Pharmaceutica N.V. | 3162 |
1 |
| Merck Patent GmbH | 5729 |
1 |
| Brightgene Bio-Medical Technology Co., Ltd. | 73 |
1 |
| Cambridge Display Technology Limited | 478 |
1 |
| Danmarks Tekniske Universitet | 1029 |
1 |
| NATCO Pharma Limited | 204 |
1 |
| Novaled AG | 91 |
1 |
| Shanghai Institute of Pharmaceutical Industry | 127 |
1 |
| Zhejiang Hisun Pharmaceutical Co., Ltd. | 301 |
1 |
| Captor Therapeutics S.A. | 38 |
1 |
| Boyuan Pharmaceutical (Suzhou) Co., Ltd. | 2 |
1 |
| Other owners | 0 |