- All sections
- C - Chemistry; metallurgy
- 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: 147
10-year publication summary
8
|
16
|
8
|
6
|
8
|
15
|
8
|
10
|
6
|
5
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
LG Chem, Ltd. | 17205 |
5 |
Adeka Corporation | 1333 |
5 |
Sony Corporation | 32931 |
4 |
Dalian Institute of Chemical Physics, Chinese Academy of Sciences | 614 |
4 |
Jawaharlal Nehru Centre for Advanced Scientific Research | 80 |
4 |
San-Apro Limited | 73 |
4 |
Heraeus Epurio LLC | 6 |
4 |
Alumend, LLC | 28 |
3 |
Heraeus Precious Metals North America Daychem LLC | 4 |
3 |
Technion Research and Development Foundation Ltd. | 337 |
3 |
Alucent Biomedical, Inc. | 39 |
3 |
Xiangbei Welman Pharmaceutical Co., Ltd. | 28 |
3 |
Nanjing Kangfushun Pharmaceutical Co., Ltd. | 21 |
3 |
Guangzhou Century Clinical Research Co., Ltd | 21 |
3 |
Guangzhou Xin-chuangyi Biopharmaceutical Co., Ltd | 19 |
3 |
F. Hoffmann-La Roche AG | 7958 |
2 |
BASF SE | 19740 |
2 |
Merck Patent GmbH | 5909 |
2 |
Life Technologies Corporation | 3068 |
2 |
Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
2 |
Other owners | 83 |