- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 517/04 - Ortho-condensed systems
Patent holdings for IPC class C07D 517/04
Total number of patents in this class: 107
10-year publication summary
|
3
|
3
|
13
|
6
|
17
|
8
|
8
|
14
|
4
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 139302 |
13 |
| Latvian Institute of Organic Synthesis | 51 |
8 |
| Nippon Kayaku Kabushiki Kaisha | 1428 |
8 |
| Duk San Neolux Co., Ltd. | 592 |
6 |
| Hiroshima University | 543 |
5 |
| Universal Display Corporation | 1818 |
5 |
| Merck Patent GmbH | 5848 |
4 |
| FUJIFILM Corporation | 28829 |
3 |
| Samsung Display Co., Ltd. | 32868 |
2 |
| China Pharmaceutical University | 274 |
2 |
| Hadasit Medical Research Services and Development Ltd. | 285 |
2 |
| Indian Institute of Science | 305 |
2 |
| Ishihara Sangyo Kaisha, Ltd. | 660 |
2 |
| Osaka University | 3301 |
2 |
| The University of Tokyo | 4066 |
2 |
| Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | 5084 |
2 |
| Jiangsu Sunera Technology Co.,Ltd | 68 |
2 |
| Beijing Summer Sprout Technology Co., Ltd. | 126 |
2 |
| Ramino-bio | 2 |
2 |
| International Business Machines Corporation | 60178 |
1 |
| Other owners | 32 |