- 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: 4521
10-year publication summary
|
395
|
454
|
388
|
415
|
378
|
382
|
337
|
338
|
297
|
251
|
| 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 | 3280 |
93 |
| Genentech, Inc. | 4017 |
88 |
| Abraxis BioScience, LLC | 209 |
71 |
| The Regents of the University of California | 20211 |
64 |
| Immunomedics, Inc. | 260 |
46 |
| Lutonix, Inc. | 65 |
45 |
| Corcept Therapeutics, Inc. | 348 |
37 |
| Crititech, Inc. | 73 |
36 |
| Taisho Pharmaceutical Co., Ltd. | 860 |
31 |
| Board of Regents, The University of Texas System | 5912 |
28 |
| Pfizer Inc. | 3388 |
27 |
| Bristol-myers Squibb Company | 4847 |
26 |
| F. Hoffmann-La Roche AG | 7944 |
26 |
| Zhuhai Beihai Biotech Co., Ltd. | 49 |
26 |
| Cedars-Sinai Medical Center | 1172 |
24 |
| Terumo Kabushiki Kaisha | 5624 |
22 |
| AstraZeneca AB | 2853 |
21 |
| University of Pittsburgh - Of the Commonwealth System of Higher Education | 3204 |
19 |
| Yale University | 2427 |
19 |
| Hoffmann-La Roche Inc. | 3511 |
18 |
| Other owners | 3754 |