- All sections
- A - Human necessities
- A61K - Preparations for medical, dental or toiletry purposes
- A61K 31/4422 - 1,4-Dihydropyridines, e.g. nifedipine, nicardipine
Patent holdings for IPC class A61K 31/4422
Total number of patents in this class: 787
10-year publication summary
|
40
|
68
|
77
|
72
|
60
|
71
|
57
|
54
|
49
|
34
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Azurity Pharmaceuticals, Inc. | 257 |
20 |
| Chiesi Farmaceutici S.p.A. | 959 |
16 |
| The George Institute for Global Health | 32 |
15 |
| Aisa Pharma, Inc. | 16 |
14 |
| Medisca Pharmaceutique Inc. | 138 |
13 |
| Daiichi Sankyo Company, Limited | 1893 |
9 |
| Hanmi Pharm. Co., Ltd. | 601 |
9 |
| Centre National de La Recherche Scientifique (cnrs) | 3017 |
9 |
| Hybrid Medical, LLC | 10 |
8 |
| Shihuida Pharmaceuticals Group (jilin) Ltd | 9 |
8 |
| CARDIX Therapeutics, LLC | 11 |
8 |
| Institut National de La Sante et de La Recherche Medicale (inserm) | 3219 |
7 |
| Sorbonne Universite | 1394 |
7 |
| Chiesi USA, Inc. | 19 |
6 |
| Merck Sharp & Dohme LLC | 3735 |
6 |
| Novartis Pharmaceuticals Corporation | 51 |
5 |
| Chong Kun Dang Pharmaceutical Corp. | 250 |
5 |
| Daewoong Pharmaceutical Co., Ltd. | 363 |
5 |
| Incept LLC | 148 |
5 |
| Inserm (institut National de La Sante et de La Recherche Medicale) | 3337 |
5 |
| Other owners | 607 |