- 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: 1013
10-year publication summary
|
71
|
74
|
63
|
71
|
55
|
65
|
39
|
45
|
38
|
14
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Regents of the University of California | 19780 |
19 |
| Lixte Biotechnology, Inc. | 63 |
19 |
| AMOREPACIFIC Corporation | 2817 |
14 |
| Allergan, Inc. | 2363 |
13 |
| Novartis AG | 10975 |
12 |
| Gilead Sciences, Inc. | 2019 |
12 |
| Sytheon Ltd. | 74 |
10 |
| Merck Sharp & Dohme LLC | 3726 |
10 |
| G. Pohl-boskamp GmbH & Co. KG | 100 |
9 |
| Korea Research Institute of Bioscience and Biotechnology | 1060 |
9 |
| Roquette Freres | 1017 |
8 |
| Boehringer Ingelheim International GmbH | 4705 |
7 |
| Takeda Pharmaceutical Company Limited | 2703 |
7 |
| Crystalgenomics, Inc. | 55 |
7 |
| Purdue Research Foundation | 3558 |
6 |
| Case Western Reserve University | 1788 |
6 |
| Cipla Limited | 468 |
6 |
| Hill's Pet Nutrition, Inc. | 832 |
6 |
| Verrica Pharmaceuticals, Inc. | 35 |
6 |
| Bayer Cropscience AG | 2076 |
5 |
| Other owners | 822 |