- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 491/02 - Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups , , or in which the condensed system contains two hetero rings
Patent holdings for IPC class C07D 491/02
Total number of patents in this class: 144
10-year publication summary
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1
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4
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2
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4
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4
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5
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5
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2
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4
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0
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rohm and Haas Electronic Materials Korea Ltd. | 332 |
8 |
| Merck Sharp & Dohme LLC | 3728 |
7 |
| Bristol-myers Squibb Company | 4721 |
6 |
| Biosplice Therapeutics, Inc. | 160 |
4 |
| Boehringer Ingelheim International GmbH | 4501 |
3 |
| Sumitomo Chemical Company, Limited | 9016 |
3 |
| Celgene International II Sàrl | 28 |
3 |
| Plexxikon Inc. | 147 |
3 |
| Samsung Electronics Co., Ltd. | 157039 |
2 |
| Hoffmann-La Roche Inc. | 3773 |
2 |
| Genentech, Inc. | 4101 |
2 |
| Merck Patent GmbH | 5725 |
2 |
| Samsung SDI Co., Ltd. | 10502 |
2 |
| ArQule, Inc. | 132 |
2 |
| Array BioPharma Inc. | 448 |
2 |
| Astex Therapeutics Limited | 208 |
2 |
| Carna Biosciences, Inc. | 65 |
2 |
| Cepheid | 359 |
2 |
| Crestone, Inc. | 17 |
2 |
| Daiichi Sankyo Company, Limited | 1894 |
2 |
| Other owners | 83 |