- All sections
- A - Human necessities
- A61K - Preparations for medical, dental or toiletry purposes
- A61K 31/21 - Esters, e.g. nitroglycerine, selenocyanates
Patent holdings for IPC class A61K 31/21
Total number of patents in this class: 520
10-year publication summary
|
45
|
26
|
23
|
31
|
24
|
19
|
15
|
21
|
19
|
23
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| G. Pohl-boskamp GmbH & Co. KG | 100 |
20 |
| Zhejiang Kanglaite Group Co., Ltd. | 15 |
12 |
| DSM IP Assets B.V. | 5572 |
9 |
| Board of Regents, The University of Texas System | 5891 |
9 |
| The Trustees of the University of Pennsylvania | 4366 |
9 |
| Nicox S.A. | 138 |
8 |
| The William M. Yarbrough Foundation | 92 |
6 |
| Guangzhou Magpie Pharmaceuticals Co., Ltd. | 29 |
6 |
| Reata Pharmaceuticals Holdings, LLC | 48 |
6 |
| Société des Produits Nestlé S.A. | 9329 |
5 |
| The Regents of the University of California | 20153 |
5 |
| Allergan, Inc. | 2329 |
5 |
| National Jewish Health | 168 |
5 |
| Rush University Medical Center | 310 |
5 |
| Theravance Biopharma R&D IP, LLC | 457 |
5 |
| Biosuccess Biotech Co. Ltd. | 25 |
4 |
| Propanc Pty Ltd | 12 |
4 |
| Attgeno AB | 12 |
4 |
| Onquality Pharmaceuticals China Ltd. | 24 |
4 |
| Novartis AG | 10707 |
3 |
| Other owners | 386 |