- 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: 6087
10-year publication summary
|
430
|
447
|
427
|
467
|
512
|
460
|
413
|
546
|
585
|
237
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Novartis AG | 10338 |
108 |
| Takeda Pharmaceutical Company Limited | 2718 |
106 |
| Merck Sharp & Dohme LLC | 3737 |
90 |
| Daiichi Sankyo Company, Limited | 1890 |
71 |
| Boehringer Ingelheim International GmbH | 4494 |
70 |
| Gilead Sciences, Inc. | 2207 |
65 |
| Bristol-myers Squibb Company | 4789 |
61 |
| Pfizer Inc. | 3375 |
61 |
| Santen Pharmaceutical Co., Ltd. | 593 |
53 |
| F. Hoffmann-La Roche AG | 7847 |
50 |
| Hoffmann-La Roche Inc. | 3726 |
44 |
| Vertex Pharmaceuticals Incorporated | 1589 |
44 |
| AstraZeneca AB | 2830 |
41 |
| Janssen Pharmaceutica N.V. | 3213 |
41 |
| The Regents of the University of California | 20590 |
37 |
| Shionogi & Co., Ltd. | 866 |
36 |
| Dana-Farber Cancer Institute, Inc. | 2645 |
35 |
| Genentech, Inc. | 4090 |
34 |
| Incyte Corporation | 1064 |
32 |
| Merck Sharp & Dohme Corp. | 2183 |
31 |
| Other owners | 4977 |