- 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: 1717
10-year publication summary
|
65
|
68
|
93
|
107
|
132
|
141
|
129
|
163
|
168
|
89
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Merck Sharp & Dohme LLC | 3753 |
50 |
| Pfizer Inc. | 3371 |
45 |
| Novartis AG | 10882 |
32 |
| RedHill Biopharma Ltd. | 98 |
30 |
| F. Hoffmann-La Roche AG | 7932 |
28 |
| Vertex Pharmaceuticals Incorporated | 1595 |
26 |
| Bristol-myers Squibb Company | 4872 |
25 |
| Merck Sharp & Dohme Corp. | 2200 |
23 |
| Bioversys AG | 69 |
23 |
| Boehringer Ingelheim International GmbH | 4705 |
20 |
| Takeda Pharmaceutical Company Limited | 2707 |
19 |
| VALO Health, Inc. | 172 |
18 |
| AstraZeneca AB | 2924 |
17 |
| Hoffmann-La Roche Inc. | 3400 |
16 |
| Eli Lilly and Company | 3829 |
16 |
| Taisho Pharmaceutical Co., Ltd. | 869 |
15 |
| Merck & Co., Inc. | 362 |
14 |
| The Regents of the University of Michigan | 4675 |
13 |
| Janssen Pharmaceutica N.V. | 3407 |
12 |
| Incyte Corporation | 1018 |
12 |
| Other owners | 1263 |