- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 231/28 - Two oxygen or sulfur atoms
Patent holdings for IPC class C07D 231/28
Total number of patents in this class: 12
10-year publication summary
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1
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0
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1
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2
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0
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1
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1
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0
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0
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0
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Johns Hopkins University | 5550 |
2 |
| Merck Sharp & Dohme Corp. | 2205 |
1 |
| Sumitomo Chemical Company, Limited | 8964 |
1 |
| Aerie Pharmaceuticals, Inc. | 61 |
1 |
| Children's Hospital Medical Center | 705 |
1 |
| Gharda Chemicals Limited | 53 |
1 |
| Kumiai Chemical Industry Co., Ltd. | 310 |
1 |
| Lycera Corporation | 31 |
1 |
| Merial, Inc. | 223 |
1 |
| University of Cincinnati | 845 |
1 |
| Zhejiang Yongtai Technology Co., Ltd. | 9 |
1 |
| Other owners | 0 |