- 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: 4344
10-year publication summary
|
421
|
497
|
430
|
447
|
413
|
405
|
366
|
356
|
300
|
78
|
| 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 | 3139 |
92 |
| Genentech, Inc. | 3888 |
80 |
| Abraxis BioScience, LLC | 207 |
70 |
| The Regents of the University of California | 19661 |
64 |
| Lutonix, Inc. | 65 |
45 |
| Immunomedics, Inc. | 267 |
44 |
| Crititech, Inc. | 72 |
35 |
| Corcept Therapeutics, Inc. | 325 |
34 |
| Taisho Pharmaceutical Co., Ltd. | 847 |
29 |
| Board of Regents, The University of Texas System | 5673 |
27 |
| Zhuhai Beihai Biotech Co., Ltd. | 44 |
26 |
| Bristol-myers Squibb Company | 4848 |
25 |
| Pfizer Inc. | 3327 |
25 |
| F. Hoffmann-La Roche AG | 7889 |
24 |
| Terumo Kabushiki Kaisha | 5478 |
22 |
| Cedars-Sinai Medical Center | 1133 |
22 |
| AstraZeneca AB | 2940 |
20 |
| University of Pittsburgh - Of the Commonwealth System of Higher Education | 3090 |
19 |
| Yale University | 2322 |
19 |
| Astellas Pharma Inc. | 1084 |
18 |
| Other owners | 3604 |