- 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: 3555
10-year publication summary
|
194
|
209
|
187
|
212
|
295
|
270
|
238
|
387
|
378
|
297
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Boehringer Ingelheim International GmbH | 4479 |
87 |
| Bristol-myers Squibb Company | 4757 |
83 |
| Novartis AG | 10169 |
72 |
| Takeda Pharmaceutical Company Limited | 2700 |
60 |
| F. Hoffmann-La Roche AG | 7798 |
50 |
| Hoffmann-La Roche Inc. | 3841 |
43 |
| Gilead Sciences, Inc. | 2247 |
42 |
| Merck Sharp & Dohme LLC | 3733 |
38 |
| Boehringer Ingelheim Vetmedica GmbH | 1274 |
37 |
| Janssen Pharmaceutica N.V. | 3147 |
36 |
| Pfizer Inc. | 3418 |
35 |
| Merck Patent GmbH | 5747 |
35 |
| Board of Regents, The University of Texas System | 6172 |
35 |
| Arvinas Operations, Inc. | 248 |
32 |
| Vanderbilt University | 2030 |
30 |
| AstraZeneca AB | 2823 |
29 |
| Genentech, Inc. | 4132 |
27 |
| Amgen Inc. | 4467 |
26 |
| Vertex Pharmaceuticals Incorporated | 1577 |
25 |
| Daiichi Sankyo Company, Limited | 1890 |
20 |
| Other owners | 2713 |