- All sections
- A - Human necessities
- A61K - Preparations for medical, dental or toiletry purposes
- A61K 31/397 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having four-membered rings, e.g. azetidine
Patent holdings for IPC class A61K 31/397
Total number of patents in this class: 1786
10-year publication summary
|
104
|
146
|
154
|
144
|
152
|
136
|
122
|
121
|
117
|
82
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Novartis AG | 10847 |
57 |
| Epicentrx, Inc. | 90 |
36 |
| Merck Sharp & Dohme LLC | 3750 |
36 |
| FUJIFILM Toyama Chemical Co., Ltd. | 111 |
27 |
| Bristol-myers Squibb Company | 4878 |
26 |
| Amarin Pharmaceuticals Ireland Limited | 270 |
24 |
| Boehringer Ingelheim International GmbH | 4656 |
21 |
| Janssen Pharmaceutica N.V. | 3395 |
21 |
| Allergan, Inc. | 2349 |
21 |
| Genentech, Inc. | 3971 |
20 |
| Incyte Corporation | 1020 |
20 |
| The Broad Institute, Inc. | 1805 |
16 |
| Ono Pharmaceutical Co., Ltd. | 434 |
15 |
| Bow River LLC | 22 |
15 |
| Azevan Pharmaceuticals, Inc. | 22 |
13 |
| Biogen MA Inc. | 894 |
13 |
| Toyama Chemical Co., Ltd. | 102 |
13 |
| F. Hoffmann-La Roche AG | 7930 |
12 |
| Merck Sharp & Dohme Corp. | 2197 |
12 |
| The General Hospital Corporation | 4726 |
12 |
| Other owners | 1356 |