- All sections
- A - Human necessities
- A61K - Preparations for medical, dental or toiletry purposes
- A61K 31/498 - Pyrazines or piperazines ortho- or peri-condensed with carbocyclic ring systems, e.g. quinoxaline, phenazine
Patent holdings for IPC class A61K 31/498
Total number of patents in this class: 2049
10-year publication summary
|
172
|
153
|
178
|
184
|
161
|
181
|
179
|
169
|
167
|
64
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Janssen Pharmaceutica N.V. | 3839 |
58 |
| Allergan, Inc. | 2600 |
55 |
| Abbvie Inc. | 1808 |
33 |
| Eye Therapies LLC | 37 |
29 |
| Astex Therapeutics Limited | 267 |
26 |
| Purdue Pharma L.P. | 519 |
24 |
| Bristol-myers Squibb Company | 5080 |
23 |
| Neupharma, Inc. | 72 |
22 |
| Merck Patent GmbH | 5909 |
18 |
| Takeda Pharmaceutical Company Limited | 2961 |
18 |
| RedHill Biopharma Ltd. | 96 |
16 |
| Santen Pharmaceutical Co., Ltd. | 649 |
14 |
| Shionogi & Co., Ltd. | 914 |
14 |
| Exelixis, Inc. | 393 |
13 |
| Gilead Sciences, Inc. | 1879 |
13 |
| Taisho Pharmaceutical Co., Ltd. | 844 |
13 |
| Eisai R&D Management Co., Ltd. | 1304 |
13 |
| Merck Sharp & Dohme LLC | 3689 |
13 |
| Novartis AG | 11238 |
12 |
| Genentech, Inc. | 3742 |
12 |
| Other owners | 1610 |