- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 221/14 - Aza-phenalenes, e.g. 1,8-naphthalimide
Patent holdings for IPC class C07D 221/14
Total number of patents in this class: 161
10-year publication summary
|
16
|
8
|
6
|
8
|
15
|
8
|
10
|
7
|
13
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Jawaharlal Nehru Centre for Advanced Scientific Research | 87 |
7 |
| LG Chem, Ltd. | 17581 |
5 |
| Adeka Corporation | 1362 |
5 |
| San-Apro Limited | 77 |
5 |
| Xiangbei Welman Pharmaceutical Co., Ltd. | 33 |
5 |
| Nanjing Kangfushun Pharmaceutical Co., Ltd. | 23 |
5 |
| Guangzhou Century Clinical Research Co., Ltd | 24 |
5 |
| Guangzhou Xin-chuangyi Biopharmaceutical Co., Ltd | 24 |
5 |
| Sony Corporation | 31124 |
4 |
| Dalian Institute of Chemical Physics, Chinese Academy of Sciences | 675 |
4 |
| Heraeus Epurio LLC | 7 |
4 |
| Merck Patent GmbH | 5861 |
3 |
| Alumend, LLC | 21 |
3 |
| Council of Scientific & Industrial Research | 1424 |
3 |
| Heraeus Precious Metals North America Daychem LLC | 4 |
3 |
| Technion Research and Development Foundation Ltd. | 333 |
3 |
| BASF SE | 20874 |
2 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10925 |
2 |
| Academia Sinica | 937 |
2 |
| Ewha University-industry Collaboration Foundation | 723 |
2 |
| Other owners | 84 |