- 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: 110
10-year publication summary
|
7
|
9
|
8
|
12
|
9
|
10
|
15
|
4
|
6
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sjp Biotec GmbH | 31 |
5 |
| Amgen Inc. | 4429 |
4 |
| Kyulux, Inc. | 248 |
4 |
| Samsung Display Co., Ltd. | 38676 |
3 |
| The Regents of the University of California | 20778 |
3 |
| Jiangsu Sunera Technology Co.,Ltd | 71 |
3 |
| Samsung Electronics Co., Ltd. | 157946 |
2 |
| 4SC AG | 66 |
2 |
| SFC Co., Ltd. | 335 |
2 |
| Shanghai Institute of Materia Medica, Chinese Academy of Sciences | 874 |
2 |
| The United States of America, as represented by the Secretary, Department of Health and Human Services | 3003 |
2 |
| Zhejiang University | 3448 |
2 |
| Nanophagix LLC | 2 |
2 |
| LT Materials Co., Ltd. | 444 |
2 |
| F. Hoffmann-La Roche AG | 7819 |
1 |
| Hoffmann-La Roche Inc. | 3796 |
1 |
| Boehringer Ingelheim International GmbH | 4493 |
1 |
| Merck Patent GmbH | 5729 |
1 |
| Bayer Pharma AG | 1009 |
1 |
| FUJIFILM Corporation | 30516 |
1 |
| Other owners | 66 |