- All sections
- A - Human necessities
- A61K - Preparations for medical, dental or toiletry purposes
- A61K 31/496 - Non-condensed piperazines containing further heterocyclic rings, e.g. rifampin, thiothixene or sparfloxacin
Patent holdings for IPC class A61K 31/496
Total number of patents in this class: 11567
10-year publication summary
|
727
|
745
|
751
|
795
|
734
|
778
|
802
|
734
|
900
|
802
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Novartis AG | 10686 |
126 |
| Janssen Pharmaceutica N.V. | 3364 |
123 |
| Boehringer Ingelheim International GmbH | 4641 |
113 |
| The Regents of the University of California | 20172 |
107 |
| Otsuka Pharmaceutical Co., Ltd. | 1497 |
98 |
| Bristol-myers Squibb Company | 4845 |
86 |
| Merck Sharp & Dohme LLC | 3732 |
78 |
| Genentech, Inc. | 4005 |
70 |
| Alkermes Pharma Ireland Limited | 267 |
69 |
| Takeda Pharmaceutical Company Limited | 2706 |
64 |
| Beyondspring Pharmaceuticals, Inc. | 83 |
62 |
| Board of Regents, The University of Texas System | 5898 |
61 |
| Abbvie Inc. | 1802 |
61 |
| F. Hoffmann-La Roche AG | 7942 |
60 |
| Astellas Pharma Inc. | 1065 |
60 |
| Arvinas Operations, Inc. | 239 |
57 |
| Hoffmann-La Roche Inc. | 3495 |
54 |
| Daiichi Sankyo Company, Limited | 1878 |
53 |
| Centre National de La Recherche Scientifique | 10611 |
52 |
| Dana-Farber Cancer Institute, Inc. | 2604 |
52 |
| Other owners | 10061 |