- All sections
- A - Human necessities
- A61K - Preparations for medical, dental or toiletry purposes
- A61K 31/558 - Eicosanoids, e.g. leukotrienes having heterocyclic rings containing oxygen as the only ring hetero atom, e.g. thromboxanes
Patent holdings for IPC class A61K 31/558
Total number of patents in this class: 82
10-year publication summary
|
4
|
2
|
4
|
8
|
10
|
3
|
3
|
4
|
5
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ono Pharmaceutical Co., Ltd. | 426 |
12 |
| Santen Pharmaceutical Co., Ltd. | 594 |
6 |
| United Therapeutics Corporation | 317 |
6 |
| Sucampo AG | 54 |
4 |
| National Jewish Health | 168 |
3 |
| Polyactiva Pty Ltd | 27 |
3 |
| Shanghai Institute of Materia Medica, Chinese Academy of Sciences | 853 |
3 |
| The Regents of the University of California | 20366 |
2 |
| Apotex Pharmachem Inc. | 24 |
2 |
| Lucolas-m.d. Ltd. | 5 |
2 |
| Nipro Corporation | 1033 |
2 |
| Shanghai Fochon Pharmaceutical Co., Ltd. | 36 |
2 |
| University of Rochester | 1333 |
2 |
| Tiziana Life Sciences plc | 35 |
2 |
| Migal Galilee Research Institute Ltd. | 55 |
2 |
| AstraZeneca AB | 2816 |
1 |
| AstraZeneca UK Limited | 581 |
1 |
| The General Hospital Corporation | 4794 |
1 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 5155 |
1 |
| Apotex Inc. | 207 |
1 |
| Other owners | 24 |