- 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: 3382
10-year publication summary
|
155
|
179
|
148
|
161
|
203
|
205
|
200
|
337
|
343
|
87
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Boehringer Ingelheim International GmbH | 4567 |
86 |
| Bristol-myers Squibb Company | 4821 |
82 |
| Novartis AG | 10420 |
73 |
| Takeda Pharmaceutical Company Limited | 2726 |
72 |
| F. Hoffmann-La Roche AG | 7847 |
52 |
| Hoffmann-La Roche Inc. | 3659 |
42 |
| Boehringer Ingelheim Vetmedica GmbH | 1281 |
37 |
| Gilead Sciences, Inc. | 2171 |
37 |
| Janssen Pharmaceutica N.V. | 3262 |
36 |
| Merck Patent GmbH | 5723 |
35 |
| Merck Sharp & Dohme LLC | 3719 |
35 |
| Board of Regents, The University of Texas System | 6032 |
34 |
| Pfizer Inc. | 3389 |
32 |
| Arvinas Operations, Inc. | 253 |
32 |
| AstraZeneca AB | 2832 |
28 |
| Vanderbilt University | 1963 |
28 |
| Genentech, Inc. | 4065 |
27 |
| Amgen Inc. | 4335 |
27 |
| Vertex Pharmaceuticals Incorporated | 1606 |
24 |
| Astellas Pharma Inc. | 1041 |
21 |
| Other owners | 2542 |