- All sections
- A - Human necessities
- A61K - Preparations for medical, dental or toiletry purposes
- A61K 31/444 - Non-condensed pyridinesHydrogenated 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: 6235
10-year publication summary
|
430
|
447
|
428
|
467
|
513
|
464
|
415
|
546
|
605
|
413
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Novartis AG | 10175 |
110 |
| Takeda Pharmaceutical Company Limited | 2699 |
103 |
| Merck Sharp & Dohme LLC | 3738 |
91 |
| Daiichi Sankyo Company, Limited | 1891 |
72 |
| Boehringer Ingelheim International GmbH | 4485 |
69 |
| Gilead Sciences, Inc. | 2242 |
68 |
| Pfizer Inc. | 3413 |
63 |
| Bristol-myers Squibb Company | 4764 |
60 |
| Santen Pharmaceutical Co., Ltd. | 592 |
55 |
| F. Hoffmann-La Roche AG | 7800 |
49 |
| Hoffmann-La Roche Inc. | 3825 |
45 |
| Vertex Pharmaceuticals Incorporated | 1575 |
45 |
| AstraZeneca AB | 2824 |
39 |
| The Regents of the University of California | 20842 |
38 |
| Janssen Pharmaceutica N.V. | 3160 |
37 |
| Shionogi & Co., Ltd. | 884 |
36 |
| Amgen Inc. | 4436 |
33 |
| Dana-Farber Cancer Institute, Inc. | 2669 |
33 |
| Genentech, Inc. | 4119 |
32 |
| Merck Sharp & Dohme Corp. | 2184 |
31 |
| Other owners | 5126 |