- All sections
- A - Human necessities
- A61K - Preparations for medical, dental or toiletry purposes
- A61K 31/503 - PyridazinesHydrogenated pyridazines spiro-condensed
Patent holdings for IPC class A61K 31/503
Total number of patents in this class: 46
10-year publication summary
|
1
|
1
|
1
|
0
|
2
|
3
|
3
|
9
|
4
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| TaiGen Biopharmaceuticals Co. (Beijing), Ltd. | 6 |
4 |
| Chugai Seiyaku Kabushiki Kaisha | 1423 |
3 |
| Abbvie Inc. | 1836 |
2 |
| Jiangsu Hansoh Pharmaceutical Co., Ltd. | 27 |
2 |
| Katholieke Universiteit Leuven | 1283 |
2 |
| Medshine Discovery Inc. | 587 |
2 |
| TaiGen Biotechnology Co., Ltd. | 6 |
2 |
| TaiGen Biotechnology Co., Ltd. | 37 |
2 |
| Yale University | 2533 |
2 |
| Aligos Therapeutics, Inc. | 163 |
2 |
| Phaeno Therapeutics Co., Ltd. | 11 |
2 |
| Merck Sharp & Dohme LLC | 3734 |
2 |
| Cedilla Therapeutics, Inc. | 26 |
2 |
| Regor Pharmaceuticals, Inc. | 9 |
2 |
| Bristol-myers Squibb Company | 4742 |
1 |
| F. Hoffmann-La Roche AG | 7837 |
1 |
| Janssen Pharmaceutica N.V. | 3168 |
1 |
| Pfizer Inc. | 3386 |
1 |
| Arena Pharmaceuticals, Inc. | 344 |
1 |
| Aventisub LLC | 47 |
1 |
| Other owners | 9 |