- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 455/03 - Heterocyclic compounds containing quinolizine ring systems, e.g. emetine alkaloids, protoberberineAlkylenedioxy derivatives of dibenzo [a, g] quinolizines, e.g. berberine containing quinolizine ring systems directly condensed with at least one six-membered carbocyclic ring, e.g. protoberberineAlkylenedioxy derivatives of dibenzo [a, g] quinolizines, e.g. berberine
Patent holdings for IPC class C07D 455/03
Total number of patents in this class: 150
10-year publication summary
|
12
|
8
|
9
|
6
|
7
|
10
|
12
|
12
|
9
|
12
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shenzhen HighTide Biopharmaceutical, Ltd. | 57 |
13 |
| Shanghai Institute of Materia Medica, Chinese Academy of Sciences | 823 |
9 |
| Nanjing Shijiang Medicine Technology Co., Ltd | 26 |
7 |
| Institute of Materia Medica, Chinese Academy of Medical Sciences | 177 |
5 |
| SpecGx LLC | 183 |
5 |
| Shanghai Shijiang Biotechnology Co., Ltd | 8 |
5 |
| CVI Pharmaceuticals Limited | 10 |
4 |
| Merck Patent GmbH | 5831 |
3 |
| China Pharmaceutical University | 299 |
3 |
| Topharman Shanghai Co., Ltd. | 54 |
3 |
| Centre National de La Recherche Scientifique | 10418 |
2 |
| FUJIFILM Corporation | 29367 |
2 |
| Beijing Tide Pharmaceutical Co. Ltd. | 92 |
2 |
| Changzhou Deze Medical Science Co., Ltd | 3 |
2 |
| Dalian Institute of Chemical Physics, Chinese Academy of Sciences | 674 |
2 |
| Harbin Medisan Pharmaceutical Co., Ltd. | 16 |
2 |
| LMS Co., Ltd. | 241 |
2 |
| Mallinckrodt LLC | 132 |
2 |
| Tongji University | 507 |
2 |
| Universite Claude Bernard Lyon 1 | 1023 |
2 |
| Other owners | 73 |