- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 239/48 - Two nitrogen atoms
Patent holdings for IPC class C07D 239/48
Total number of patents in this class: 1138
10-year publication summary
|
106
|
100
|
78
|
85
|
65
|
78
|
50
|
60
|
32
|
15
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rigel Pharmaceuticals, Inc. | 539 |
36 |
| Bristol-myers Squibb Company | 4898 |
35 |
| Signal Pharmaceuticals, LLC | 179 |
35 |
| Boehringer Ingelheim International GmbH | 4650 |
23 |
| Janssen Sciences Ireland UC | 183 |
21 |
| Novartis AG | 10849 |
20 |
| Merck Patent GmbH | 5831 |
16 |
| Korea Research Institute of Chemical Technology | 1391 |
15 |
| Alexion Pharmaceuticals, Inc. | 635 |
14 |
| Afferent Pharmaceuticals, Inc. | 25 |
13 |
| Dana-Farber Cancer Institute, Inc. | 2571 |
13 |
| H. Lee Moffitt Cancer Center and Research Institute, Inc. | 946 |
13 |
| F. Hoffmann-La Roche AG | 7925 |
12 |
| FUJIFILM Corporation | 29367 |
12 |
| Celgene Avilomics Research, Inc. | 31 |
12 |
| Takeda Pharmaceutical Company Limited | 2713 |
11 |
| Astellas Pharma Inc. | 1088 |
11 |
| Portola Pharmaceuticals, Inc. | 88 |
11 |
| Genentech, Inc. | 3976 |
10 |
| Bayer Cropscience AG | 2035 |
10 |
| Other owners | 795 |