- All sections
- A - Human necessities
- A61K - Preparations for medical, dental or toiletry purposes
- A61K 31/396 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having three-membered rings, e.g. aziridine
Patent holdings for IPC class A61K 31/396
Total number of patents in this class: 155
10-year publication summary
|
3
|
12
|
9
|
11
|
16
|
8
|
6
|
11
|
11
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ascentawits Pharmaceuticals, Ltd. | 71 |
11 |
| OBI Pharma, Inc. | 125 |
5 |
| The Regents of the University of California | 20494 |
4 |
| Canopy Growth Corporation | 212 |
4 |
| Helperby Therapeutics Limited | 62 |
4 |
| The United States of America, as represented by the Secretary, Department of Health and Human Services | 2966 |
3 |
| University of Maryland, College Park | 1063 |
3 |
| Uniwersytet Jagiellonski | 271 |
3 |
| Novmetapharma Co., Ltd. | 78 |
3 |
| CRO Consulting Limited | 3 |
3 |
| Gordian Pharma Limited | 3 |
3 |
| Caamtech, Inc. | 154 |
3 |
| Bristol-myers Squibb Company | 4824 |
2 |
| Genentech, Inc. | 4063 |
2 |
| The Trustees of the University of Pennsylvania | 4406 |
2 |
| Northwestern University | 3509 |
2 |
| Avedro, Inc. | 135 |
2 |
| Genzyme Corporation | 1334 |
2 |
| IMT Co., Ltd. | 76 |
2 |
| National University Corporation Niigata University | 9 |
2 |
| Other owners | 90 |