- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 251/46 - One nitrogen atom with oxygen or sulfur atoms attached to the two other ring carbon atoms
Patent holdings for IPC class C07D 251/46
Total number of patents in this class: 71
10-year publication summary
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4
|
1
|
4
|
1
|
6
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7
|
4
|
5
|
6
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shionogi & Co., Ltd. | 852 |
8 |
| Crossing SRL | 10 |
5 |
| The Regents of the University of California | 19961 |
4 |
| Polnox Corporation | 20 |
3 |
| Casale SA | 613 |
2 |
| Nissan Chemical Industries, Ltd. | 1711 |
2 |
| Shanghai Haiyan Pharmaceutical Technology Co. Ltd | 107 |
2 |
| Universita' degli Studi di Milano | 232 |
2 |
| UPL Limited | 588 |
2 |
| Yangtze River Pharmaceutical (Group) Co., Ltd. | 142 |
2 |
| Shenzhen Shenxin Biotechnology Co., Ltd. | 25 |
2 |
| Jiangsu Hengrui Pharmaceuticals Co., Ltd. | 171 |
2 |
| Janssen Pharmaceutica N.V. | 3394 |
1 |
| FUJIFILM Corporation | 29437 |
1 |
| Nitto Denko Corporation | 8253 |
1 |
| Daikin Industries, Ltd. | 10027 |
1 |
| DSM IP Assets B.V. | 5585 |
1 |
| Dow AgroSciences LLC | 1223 |
1 |
| Mitsui Chemicals, Inc. | 3222 |
1 |
| City of Hope | 994 |
1 |
| Other owners | 27 |