- All sections
- A - Human necessities
- A61K - Preparations for medical, dental or toiletry purposes
- A61K 31/438 - 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 the ring being spiro-condensed with carbocyclic or heterocyclic ring systems
Patent holdings for IPC class A61K 31/438
Total number of patents in this class: 1902
10-year publication summary
|
68
|
93
|
108
|
131
|
142
|
131
|
166
|
178
|
194
|
120
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Merck Sharp & Dohme LLC | 3734 |
50 |
| Pfizer Inc. | 3386 |
46 |
| Novartis AG | 10262 |
31 |
| RedHill Biopharma Ltd. | 96 |
31 |
| Bioversys AG | 79 |
30 |
| Bristol-myers Squibb Company | 4742 |
25 |
| F. Hoffmann-La Roche AG | 7837 |
25 |
| Vertex Pharmaceuticals Incorporated | 1582 |
25 |
| Merck Sharp & Dohme Corp. | 2183 |
23 |
| Boehringer Ingelheim International GmbH | 4493 |
20 |
| Eli Lilly and Company | 4101 |
19 |
| Takeda Pharmaceutical Company Limited | 2712 |
18 |
| VALO Health, Inc. | 193 |
18 |
| Hoffmann-La Roche Inc. | 3793 |
16 |
| AstraZeneca AB | 2814 |
14 |
| Janssen Pharmaceutica N.V. | 3168 |
14 |
| The Regents of the University of Michigan | 4985 |
14 |
| Bayer AG | 3501 |
12 |
| Amgen Inc. | 4427 |
12 |
| Shionogi & Co., Ltd. | 880 |
12 |
| Other owners | 1447 |