- All sections
- A - Human necessities
- A61K - Preparations for medical, dental or toiletry purposes
- A61K 31/501 - PyridazinesHydrogenated pyridazines not condensed and containing further heterocyclic rings
Patent holdings for IPC class A61K 31/501
Total number of patents in this class: 3426
10-year publication summary
|
194
|
209
|
187
|
212
|
294
|
268
|
237
|
386
|
366
|
151
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Boehringer Ingelheim International GmbH | 4496 |
86 |
| Bristol-myers Squibb Company | 4815 |
84 |
| Novartis AG | 10341 |
72 |
| Takeda Pharmaceutical Company Limited | 2716 |
71 |
| F. Hoffmann-La Roche AG | 7841 |
52 |
| Hoffmann-La Roche Inc. | 3718 |
42 |
| Gilead Sciences, Inc. | 2190 |
38 |
| Merck Sharp & Dohme LLC | 3732 |
38 |
| Boehringer Ingelheim Vetmedica GmbH | 1272 |
36 |
| Janssen Pharmaceutica N.V. | 3226 |
36 |
| Merck Patent GmbH | 5669 |
35 |
| Pfizer Inc. | 3370 |
34 |
| Board of Regents, The University of Texas System | 6062 |
34 |
| Arvinas Operations, Inc. | 256 |
32 |
| Vanderbilt University | 1982 |
30 |
| Genentech, Inc. | 4087 |
27 |
| AstraZeneca AB | 2828 |
27 |
| Amgen Inc. | 4362 |
26 |
| Vertex Pharmaceuticals Incorporated | 1595 |
24 |
| Astellas Pharma Inc. | 1036 |
20 |
| Other owners | 2582 |