- 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: 5629
10-year publication summary
|
392
|
430
|
447
|
427
|
467
|
510
|
456
|
406
|
497
|
266
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Novartis AG | 10904 |
110 |
| Takeda Pharmaceutical Company Limited | 2704 |
109 |
| Merck Sharp & Dohme LLC | 3741 |
86 |
| Daiichi Sankyo Company, Limited | 1852 |
73 |
| Boehringer Ingelheim International GmbH | 4704 |
67 |
| Bristol-myers Squibb Company | 4892 |
63 |
| Gilead Sciences, Inc. | 2028 |
60 |
| F. Hoffmann-La Roche AG | 7926 |
52 |
| Santen Pharmaceutical Co., Ltd. | 604 |
52 |
| Pfizer Inc. | 3367 |
50 |
| Janssen Pharmaceutica N.V. | 3423 |
42 |
| Vertex Pharmaceuticals Incorporated | 1596 |
42 |
| AstraZeneca AB | 2928 |
40 |
| Hoffmann-La Roche Inc. | 3379 |
38 |
| Genentech, Inc. | 3961 |
35 |
| Dana-Farber Cancer Institute, Inc. | 2553 |
35 |
| Amgen Inc. | 4047 |
34 |
| The Regents of the University of California | 19812 |
33 |
| Merck Sharp & Dohme Corp. | 2201 |
33 |
| Shionogi & Co., Ltd. | 867 |
32 |
| Other owners | 4543 |