- 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: 1392
10-year publication summary
|
60
|
65
|
62
|
86
|
74
|
87
|
78
|
98
|
94
|
72
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Case Western Reserve University | 1845 |
38 |
| Daiichi Sankyo Company, Limited | 1881 |
21 |
| Board of Regents, The University of Texas System | 5912 |
18 |
| Murray and Poole Enterprises Limited | 26 |
15 |
| Chiesi Farmaceutici S.p.A. | 976 |
14 |
| The Regents of the University of California | 20211 |
13 |
| Takeda Pharmaceutical Company Limited | 2713 |
13 |
| The Board of Trustees of the Leland Stanford Junior University | 6507 |
12 |
| Poxel | 41 |
11 |
| Aspeya US Inc. | 24 |
11 |
| Merck Patent GmbH | 5777 |
10 |
| CyDex Pharmaceuticals, Inc. | 106 |
10 |
| Incyte Corporation | 1036 |
10 |
| Ube Industries, Ltd. | 827 |
10 |
| F. Hoffmann-La Roche AG | 7944 |
9 |
| Genentech, Inc. | 4017 |
9 |
| Jiangsu Vcare PharmaTech Co., Ltd. | 35 |
9 |
| The Board of Regents of the University of Texas System | 2234 |
9 |
| Boehringer Ingelheim International GmbH | 4649 |
8 |
| Amgen Inc. | 4147 |
8 |
| Other owners | 1134 |