- All sections
- A - Human necessities
- A61K - Preparations for medical, dental or toiletry purposes
- A61K 31/34 - Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having five-membered rings with one oxygen as the only ring hetero atom, e.g. isosorbide
Patent holdings for IPC class A61K 31/34
Total number of patents in this class: 968
10-year publication summary
|
74
|
63
|
71
|
55
|
65
|
39
|
45
|
41
|
37
|
14
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Regents of the University of California | 20690 |
19 |
| Lixte Biotechnology, Inc. | 62 |
19 |
| AMOREPACIFIC Corporation | 2901 |
14 |
| Gilead Sciences, Inc. | 2219 |
14 |
| Novartis AG | 10300 |
12 |
| Roquette Freres | 1052 |
10 |
| Sytheon Ltd. | 77 |
10 |
| Merck Sharp & Dohme LLC | 3728 |
10 |
| Allergan, Inc. | 2174 |
9 |
| Korea Research Institute of Bioscience and Biotechnology | 1064 |
9 |
| G. Pohl-boskamp GmbH & Co. KG | 101 |
7 |
| Verrica Pharmaceuticals, Inc. | 38 |
7 |
| Boehringer Ingelheim International GmbH | 4501 |
6 |
| Takeda Pharmaceutical Company Limited | 2714 |
6 |
| Purdue Research Foundation | 3901 |
6 |
| Anavex Life Sciences Corp. | 82 |
6 |
| Cipla Limited | 472 |
6 |
| Hill's Pet Nutrition, Inc. | 786 |
6 |
| Archer Daniels Midland Company | 1078 |
5 |
| Case Western Reserve University | 1879 |
5 |
| Other owners | 782 |