- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 257/04 - Five-membered rings
Patent holdings for IPC class C07D 257/04
Total number of patents in this class: 1122
10-year publication summary
|
92
|
72
|
65
|
67
|
71
|
68
|
57
|
55
|
42
|
20
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Chemical Company, Limited | 9043 |
37 |
| Theravance Biopharma R&D IP, LLC | 456 |
26 |
| Novartis AG | 10744 |
22 |
| Bristol-myers Squibb Company | 4880 |
19 |
| Allergan, Inc. | 2347 |
17 |
| SK Biopharmaceuticals Co., Ltd. | 262 |
13 |
| Nippon Soda Co., Ltd. | 895 |
12 |
| Rigel Pharmaceuticals, Inc. | 538 |
11 |
| Viamet Pharmaceuticals, Inc. | 39 |
11 |
| F. Hoffmann-La Roche AG | 7947 |
10 |
| Bayer Cropscience AG | 2040 |
10 |
| Global Blood Therapeutics, Inc. | 181 |
10 |
| Zhejiang Huahai Pharmaceutical Co., Ltd. | 209 |
10 |
| Board of Regents, The University of Texas System | 5808 |
9 |
| Pacific Scientific Energetic Materials Company | 50 |
9 |
| Reata Pharmaceuticals, Inc. | 123 |
9 |
| Bayer Pharma AG | 1053 |
8 |
| Neurosearch A/S | 185 |
8 |
| The Regents of the University of California | 19961 |
7 |
| Boehringer Ingelheim International GmbH | 4642 |
7 |
| Other owners | 857 |