- 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: 1003
10-year publication summary
|
66
|
73
|
58
|
63
|
51
|
56
|
35
|
36
|
35
|
23
|
| 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 | 20015 |
19 |
| Lixte Biotechnology, Inc. | 64 |
19 |
| AMOREPACIFIC Corporation | 2846 |
14 |
| Allergan, Inc. | 2337 |
13 |
| Gilead Sciences, Inc. | 2041 |
13 |
| Novartis AG | 10727 |
12 |
| Sytheon Ltd. | 74 |
10 |
| Merck Sharp & Dohme LLC | 3748 |
10 |
| G. Pohl-boskamp GmbH & Co. KG | 100 |
9 |
| Korea Research Institute of Bioscience and Biotechnology | 1059 |
9 |
| Roquette Freres | 1031 |
9 |
| Takeda Pharmaceutical Company Limited | 2703 |
7 |
| Crystalgenomics, Inc. | 56 |
7 |
| Boehringer Ingelheim International GmbH | 4645 |
6 |
| Purdue Research Foundation | 3646 |
6 |
| Case Western Reserve University | 1829 |
6 |
| Cipla Limited | 464 |
6 |
| Hill's Pet Nutrition, Inc. | 805 |
6 |
| Verrica Pharmaceuticals, Inc. | 36 |
6 |
| Anavex Life Sciences Corp. | 70 |
5 |
| Other owners | 811 |