- All sections
- A - Human necessities
- A61K - Preparations for medical, dental or toiletry purposes
- A61K 31/501 - Pyridazines; Hydrogenated pyridazines not condensed and containing further heterocyclic rings
Patent holdings for IPC class A61K 31/501
Total number of patents in this class: 2730
10-year publication summary
|
163
|
167
|
194
|
210
|
184
|
210
|
279
|
251
|
205
|
76
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Boehringer Ingelheim International GmbH | 4629 |
77 |
| Takeda Pharmaceutical Company Limited | 2961 |
77 |
| Novartis AG | 11238 |
73 |
| Bristol-myers Squibb Company | 5080 |
71 |
| Janssen Pharmaceutica N.V. | 3839 |
47 |
| F. Hoffmann-La Roche AG | 7958 |
44 |
| Merck Patent GmbH | 5909 |
39 |
| AstraZeneca AB | 3042 |
33 |
| Boehringer Ingelheim Vetmedica GmbH | 1290 |
31 |
| Merck Sharp & Dohme LLC | 3689 |
31 |
| Hoffmann-La Roche Inc. | 3060 |
27 |
| Pfizer Inc. | 3322 |
26 |
| Board of Regents, The University of Texas System | 5370 |
26 |
| Gilead Sciences, Inc. | 1879 |
26 |
| Amgen Inc. | 3779 |
25 |
| Arvinas Operations, Inc. | 165 |
25 |
| Genentech, Inc. | 3742 |
24 |
| Astellas Pharma Inc. | 1145 |
23 |
| Bayer AG | 3045 |
20 |
| Calithera Biosciences, Inc. | 52 |
20 |
| Other owners | 1965 |