- All sections
- A - Human necessities
- A61K - Preparations for medical, dental or toiletry purposes
- A61K 31/444 - Non-condensed pyridines; Hydrogenated derivatives thereof containing further heterocyclic ring systems containing a six-membered ring with nitrogen as a ring hetero atom, e.g. amrinone
Patent holdings for IPC class A61K 31/444
Total number of patents in this class: 5425
10-year publication summary
|
392
|
430
|
447
|
428
|
463
|
502
|
449
|
375
|
480
|
23
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Takeda Pharmaceutical Company Limited | 2945 |
113 |
| Novartis AG | 11297 |
109 |
| Merck Sharp & Dohme LLC | 3742 |
87 |
| Daiichi Sankyo Company, Limited | 1863 |
75 |
| Bristol-myers Squibb Company | 4886 |
64 |
| Boehringer Ingelheim International GmbH | 4762 |
63 |
| Gilead Sciences, Inc. | 1949 |
56 |
| Santen Pharmaceutical Co., Ltd. | 626 |
55 |
| F. Hoffmann-La Roche AG | 7942 |
53 |
| Pfizer Inc. | 3373 |
52 |
| AstraZeneca AB | 2961 |
48 |
| Janssen Pharmaceutica N.V. | 3625 |
43 |
| Vertex Pharmaceuticals Incorporated | 1570 |
36 |
| Dana-Farber Cancer Institute, Inc. | 2531 |
36 |
| Epizyme, Inc. | 386 |
36 |
| Amgen Inc. | 3894 |
34 |
| Genentech, Inc. | 3864 |
33 |
| Merck Sharp & Dohme Corp. | 2218 |
33 |
| Hoffmann-La Roche Inc. | 3252 |
32 |
| Eisai R&D Management Co., Ltd. | 1271 |
31 |
| Other owners | 4336 |