- All sections
- A - Human necessities
- A61K - Preparations for medical, dental or toiletry purposes
- A61K 31/443 - Non-condensed pyridinesHydrogenated derivatives thereof containing further heterocyclic ring systems containing a five-membered ring with oxygen as a ring hetero atom
Patent holdings for IPC class A61K 31/443
Total number of patents in this class: 1125
10-year publication summary
|
84
|
82
|
71
|
71
|
86
|
78
|
82
|
82
|
90
|
23
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Vertex Pharmaceuticals Incorporated | 1597 |
96 |
| Novartis AG | 10327 |
34 |
| Takeda Pharmaceutical Company Limited | 2718 |
20 |
| Daiichi Sankyo Company, Limited | 1886 |
19 |
| Boehringer Ingelheim International GmbH | 4509 |
13 |
| Merck Sharp & Dohme LLC | 3729 |
13 |
| Bristol-myers Squibb Company | 4811 |
11 |
| Schering Corporation | 372 |
11 |
| Metro International Biotech, LLC | 40 |
11 |
| Constellation Pharmaceuticals, Inc. | 213 |
9 |
| Allergan, Inc. | 2206 |
8 |
| Emory University | 1703 |
8 |
| Epizyme, Inc. | 357 |
8 |
| Katholieke Universiteit Leuven | 1253 |
8 |
| Shanghai Hengrui Pharmaceutical Co., Ltd. | 680 |
8 |
| Zedira GmbH | 37 |
8 |
| Flatley Discovery Lab, LLC | 19 |
8 |
| BASF SE | 21150 |
7 |
| The Regents of the University of California | 20574 |
7 |
| AstraZeneca AB | 2832 |
7 |
| Other owners | 811 |