- All sections
- A - Human necessities
- A61K - Preparations for medical, dental or toiletry purposes
- A61K 31/337 - Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having four-membered rings, e.g. taxol
Patent holdings for IPC class A61K 31/337
Total number of patents in this class: 4444
10-year publication summary
|
421
|
497
|
430
|
447
|
413
|
405
|
368
|
356
|
301
|
173
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mayo Foundation for Medical Education and Research | 3204 |
93 |
| Genentech, Inc. | 3971 |
86 |
| Abraxis BioScience, LLC | 209 |
72 |
| The Regents of the University of California | 19898 |
64 |
| Lutonix, Inc. | 65 |
45 |
| Immunomedics, Inc. | 267 |
44 |
| Crititech, Inc. | 73 |
36 |
| Corcept Therapeutics, Inc. | 338 |
35 |
| Taisho Pharmaceutical Co., Ltd. | 869 |
31 |
| Board of Regents, The University of Texas System | 5786 |
27 |
| Zhuhai Beihai Biotech Co., Ltd. | 47 |
27 |
| F. Hoffmann-La Roche AG | 7930 |
26 |
| Pfizer Inc. | 3379 |
26 |
| Bristol-myers Squibb Company | 4878 |
25 |
| Cedars-Sinai Medical Center | 1155 |
23 |
| Terumo Kabushiki Kaisha | 5525 |
22 |
| AstraZeneca AB | 2920 |
21 |
| University of Pittsburgh - Of the Commonwealth System of Higher Education | 3145 |
19 |
| Yale University | 2376 |
19 |
| Astellas Pharma Inc. | 1085 |
18 |
| Other owners | 3685 |