- 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: 2857
10-year publication summary
|
229
|
212
|
199
|
213
|
218
|
139
|
130
|
127
|
120
|
89
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Regents of the University of California | 20987 |
51 |
| The Johns Hopkins University | 5958 |
28 |
| Ellodi Pharmaceuticals, L.P., General Partner, Ellodi Development I Genpar, LLC, a Delaware limited liability company | 34 |
27 |
| Mexichem Fluor, Sociedad Anonima de Capital Variable | 203 |
23 |
| Sage Therapeutics, Inc. | 205 |
23 |
| Lipocine Inc. | 126 |
19 |
| Reata Pharmaceuticals, Inc. | 108 |
19 |
| Brigham Young University | 600 |
18 |
| Emory University | 1733 |
18 |
| Corcept Therapeutics, Inc. | 373 |
17 |
| Laboratoire Hra-pharma | 155 |
16 |
| Arven Ilac Sanayi Ve Ticaret A.S. | 93 |
15 |
| Phoenix Biotechnology, Inc. | 44 |
15 |
| Enanta Pharmaceuticals, Inc. | 427 |
14 |
| Regeneron Pharmaceuticals, Inc. | 4887 |
14 |
| Board of Regents, The University of Texas System | 6206 |
13 |
| Alcon, Inc. | 5953 |
13 |
| Shanghai Institute of Materia Medica, Chinese Academy of Sciences | 884 |
13 |
| California Institute of Technology | 4048 |
12 |
| Royalty Security, LLC | 20 |
12 |
| Other owners | 2477 |