- All sections
- A - Human necessities
- A61K - Preparations for medical, dental or toiletry purposes
- A61K 31/5355 - Non-condensed oxazines containing further heterocyclic rings
Patent holdings for IPC class A61K 31/5355
Total number of patents in this class: 659
10-year publication summary
|
29
|
32
|
31
|
32
|
39
|
32
|
27
|
28
|
42
|
33
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Boehringer Ingelheim International GmbH | 4637 |
28 |
| F. Hoffmann-La Roche AG | 7934 |
23 |
| Recurium IP Holdings, LLC | 136 |
17 |
| Hoffmann-La Roche Inc. | 3534 |
16 |
| Novartis AG | 10626 |
13 |
| Janssen Pharmaceutica N.V. | 3350 |
13 |
| Amgen Inc. | 4163 |
13 |
| Gilead Sciences, Inc. | 2085 |
13 |
| Bristol-myers Squibb Company | 4824 |
12 |
| Vitae Pharmaceuticals, Inc. | 94 |
11 |
| Taisho Pharmaceutical Co., Ltd. | 858 |
10 |
| Siena Biotech S.p.A. | 35 |
9 |
| Merck Patent GmbH | 5755 |
8 |
| The Trustees of the University of Pennsylvania | 4376 |
8 |
| Celgene Corporation | 1414 |
8 |
| Shionogi & Co., Ltd. | 837 |
7 |
| Allergan, Inc. | 2315 |
6 |
| Takeda Pharmaceutical Company Limited | 2716 |
6 |
| Vanderbilt University | 1934 |
6 |
| Pfizer Inc. | 3404 |
5 |
| Other owners | 427 |