- All sections
- A - Human necessities
- A61K - Preparations for medical, dental or toiletry purposes
- A61K 31/4365 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom ortho- or peri-condensed with heterocyclic ring systems the heterocyclic ring system having sulfur as a ring hetero atom, e.g. ticlopidine
Patent holdings for IPC class A61K 31/4365
Total number of patents in this class: 1375
10-year publication summary
|
69
|
83
|
72
|
101
|
89
|
102
|
98
|
98
|
93
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Case Western Reserve University | 1770 |
36 |
| Daiichi Sankyo Company, Limited | 1864 |
21 |
| Board of Regents, The University of Texas System | 5619 |
16 |
| Merck Patent GmbH | 5842 |
13 |
| Takeda Pharmaceutical Company Limited | 2943 |
13 |
| Murray and Poole Enterprises Limited | 23 |
13 |
| The Regents of the University of California | 19517 |
12 |
| The Board of Trustees of the Leland Stanford Junior University | 6246 |
12 |
| Chiesi Farmaceutici S.p.A. | 958 |
12 |
| Poxel | 40 |
11 |
| Vectura Inc. | 27 |
11 |
| F. Hoffmann-La Roche AG | 7942 |
10 |
| Boehringer Ingelheim International GmbH | 4754 |
10 |
| CyDex Pharmaceuticals, Inc. | 108 |
10 |
| Ube Industries, Ltd. | 879 |
10 |
| Genentech, Inc. | 3869 |
9 |
| Jiangsu Vcare PharmaTech Co., Ltd. | 32 |
9 |
| MethylGene Inc. | 47 |
9 |
| Bristol-myers Squibb Company | 4863 |
8 |
| AstraZeneca AB | 2958 |
8 |
| Other owners | 1122 |