- All sections
- A - Human necessities
- A61K - Preparations for medical, dental or toiletry purposes
- A61K 31/56 - Compounds containing cyclopenta[a]hydrophenanthrene ring systemsDerivatives thereof, e.g. steroids
Patent holdings for IPC class A61K 31/56
Total number of patents in this class: 2922
10-year publication summary
|
213
|
212
|
194
|
184
|
190
|
190
|
126
|
111
|
114
|
83
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Regents of the University of California | 20172 |
56 |
| Sage Therapeutics, Inc. | 373 |
29 |
| The Johns Hopkins University | 5734 |
28 |
| Mexichem Fluor, Sociedad Anonima de Capital Variable | 204 |
22 |
| Brigham Young University | 598 |
21 |
| InterCept Pharmaceuticals, Inc. | 203 |
20 |
| Ellodi Pharmaceuticals, L.P., General Partner, Ellodi Development I Genpar, LLC, a Delaware limited liability company | 28 |
20 |
| Lipocine Inc. | 114 |
19 |
| Reata Pharmaceuticals, Inc. | 117 |
19 |
| Emory University | 1644 |
18 |
| Corcept Therapeutics, Inc. | 348 |
17 |
| Laboratoire Hra-pharma | 152 |
16 |
| Arven Ilac Sanayi Ve Ticaret A.S. | 96 |
15 |
| Enanta Pharmaceuticals, Inc. | 433 |
15 |
| Phoenix Biotechnology, Inc. | 49 |
15 |
| Alcon, Inc. | 5492 |
13 |
| Shanghai Institute of Materia Medica, Chinese Academy of Sciences | 836 |
13 |
| Board of Regents, The University of Texas System | 5898 |
12 |
| Royalty Security, LLC | 21 |
12 |
| California Institute of Technology | 3988 |
11 |
| Other owners | 2531 |