- All sections
- A - Human necessities
- A61K - Preparations for medical, dental or toiletry purposes
- A61K 31/502 - PyridazinesHydrogenated pyridazines ortho- or peri-condensed with carbocyclic ring systems, e.g. cinnoline, phthalazine
Patent holdings for IPC class A61K 31/502
Total number of patents in this class: 1493
10-year publication summary
|
72
|
72
|
87
|
102
|
110
|
132
|
161
|
158
|
168
|
91
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| AstraZeneca AB | 2908 |
42 |
| MetrioPharm AG | 48 |
37 |
| F. Hoffmann-La Roche AG | 7921 |
21 |
| Amgen Inc. | 4044 |
19 |
| Mirati Therapeutics, Inc. | 250 |
19 |
| Novartis AG | 10850 |
16 |
| The Regents of the University of California | 19929 |
14 |
| Dana-Farber Cancer Institute, Inc. | 2564 |
14 |
| KuDOS Pharmaceuticals Limited | 37 |
13 |
| Rigel Pharmaceuticals, Inc. | 538 |
13 |
| Genentech, Inc. | 3980 |
12 |
| The Johns Hopkins University | 5669 |
12 |
| Daiichi Sankyo Company, Limited | 1874 |
11 |
| Bergenbio ASA | 57 |
11 |
| Idience Co., Ltd. | 19 |
11 |
| Centre National de La Recherche Scientifique | 10432 |
10 |
| Board of Regents, The University of Texas System | 5803 |
10 |
| Takeda Pharmaceutical Company Limited | 2709 |
10 |
| Shanghai Institute of Materia Medica, Chinese Academy of Sciences | 827 |
10 |
| Glaxo Group Limited | 4068 |
9 |
| Other owners | 1179 |