- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 491/153 - Ortho-condensed systems the condensed system containing two rings with oxygen as ring hetero atom and one ring with nitrogen as ring hetero atom
Patent holdings for IPC class C07D 491/153
Total number of patents in this class: 106
10-year publication summary
|
7
|
7
|
9
|
8
|
12
|
9
|
10
|
15
|
3
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| eFFECTOR Therapeutics, Inc. | 68 |
5 |
| Kyulux, Inc. | 234 |
4 |
| Samsung Display Co., Ltd. | 34230 |
3 |
| The Regents of the University of California | 19812 |
3 |
| Amgen Inc. | 4047 |
3 |
| Nanophagix LLC | 3 |
3 |
| Jiangsu Sunera Technology Co.,Ltd | 68 |
3 |
| Samsung Electronics Co., Ltd. | 144143 |
2 |
| 4SC AG | 80 |
2 |
| Arbutus Biopharma Corporation | 177 |
2 |
| Shanghai Institute of Materia Medica, Chinese Academy of Sciences | 820 |
2 |
| Zhejiang University | 3093 |
2 |
| LT Materials Co., Ltd. | 401 |
2 |
| F. Hoffmann-La Roche AG | 7926 |
1 |
| Hoffmann-La Roche Inc. | 3379 |
1 |
| Boehringer Ingelheim International GmbH | 4704 |
1 |
| Merck Patent GmbH | 5850 |
1 |
| Bayer Pharma AG | 1061 |
1 |
| FUJIFILM Corporation | 29228 |
1 |
| Nikon Corporation | 7159 |
1 |
| Other owners | 63 |