- 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: 1856
10-year publication summary
|
68
|
93
|
108
|
131
|
142
|
131
|
166
|
177
|
188
|
74
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Merck Sharp & Dohme LLC | 3737 |
51 |
| Pfizer Inc. | 3375 |
45 |
| RedHill Biopharma Ltd. | 97 |
31 |
| Novartis AG | 10338 |
30 |
| Bioversys AG | 79 |
30 |
| F. Hoffmann-La Roche AG | 7847 |
26 |
| Vertex Pharmaceuticals Incorporated | 1589 |
26 |
| Bristol-myers Squibb Company | 4789 |
24 |
| Merck Sharp & Dohme Corp. | 2183 |
23 |
| Boehringer Ingelheim International GmbH | 4494 |
20 |
| Eli Lilly and Company | 4050 |
20 |
| Takeda Pharmaceutical Company Limited | 2718 |
18 |
| VALO Health, Inc. | 186 |
18 |
| Hoffmann-La Roche Inc. | 3726 |
16 |
| AstraZeneca AB | 2830 |
15 |
| The Regents of the University of Michigan | 4933 |
14 |
| Janssen Pharmaceutica N.V. | 3213 |
12 |
| Shionogi & Co., Ltd. | 866 |
12 |
| Taisho Pharmaceutical Co., Ltd. | 855 |
12 |
| Amgen Inc. | 4383 |
11 |
| Other owners | 1402 |