- All sections
- C - Chemistry; metallurgy
- C07D - Heterocyclic compounds
- C07D 455/02 - Heterocyclic compounds containing quinolizine ring systems, e.g. emetine alkaloids, protoberberine; Alkylenedioxy derivatives of dibenzo [a, g] quinolizines, e.g. berberine containing not further condensed quinolizine ring systems
Patent holdings for IPC class C07D 455/02
Total number of patents in this class: 96
10-year publication summary
|
6
|
8
|
4
|
6
|
5
|
9
|
4
|
8
|
4
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Merck Sharp & Dohme LLC | 3742 |
9 |
| Biosplice Therapeutics, Inc. | 162 |
5 |
| Merck Sharp & Dohme Corp. | 2218 |
4 |
| Takeda Pharmaceutical Company Limited | 2945 |
4 |
| Emergent Product Development Gaithersburg Inc. | 44 |
4 |
| Dice Alpha, Inc. | 15 |
4 |
| Novartis AG | 11297 |
3 |
| F. Hoffmann-La Roche AG | 7942 |
3 |
| The Trustees of Columbia University in the City of New York | 3516 |
3 |
| 55pharma Drug Discovery & Development AG | 3 |
3 |
| Rigel Pharmaceuticals, Inc. | 586 |
3 |
| Techfields Pharma Co., Ltd. | 30 |
3 |
| Bristol-myers Squibb Company | 4886 |
2 |
| Merck & Co., Inc. | 451 |
2 |
| Incyte Corporation | 961 |
2 |
| The Procter & Gamble Company | 22148 |
1 |
| Pfizer Inc. | 3373 |
1 |
| Centre National de La Recherche Scientifique | 10052 |
1 |
| Massachusetts Institute of Technology | 9903 |
1 |
| The Johns Hopkins University | 5519 |
1 |
| Other owners | 37 |