- All sections
- A - Human necessities
- A61K - Preparations for medical, dental or toiletry purposes
- A61K 9/52 - Sustained or differential release type
Patent holdings for IPC class A61K 9/52
Total number of patents in this class: 657
10-year publication summary
|
37
|
43
|
43
|
29
|
29
|
28
|
25
|
22
|
30
|
13
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Johns Hopkins University | 5875 |
6 |
| Hanall Biopharma Co., Ltd. | 90 |
6 |
| Purdue Pharma L.P. | 493 |
6 |
| AC Pharmaceuticals Co., Ltd. | 22 |
6 |
| Cellixbio Private Limited | 142 |
5 |
| Jiangsu Hengrui Medicine Co., Ltd. | 694 |
5 |
| Morishita Jintan Co., Ltd. | 75 |
5 |
| Rani Therapeutics, LLC | 193 |
5 |
| The Regents of the University of California | 20720 |
4 |
| The Regents of the University of Michigan | 4979 |
4 |
| Toray Industries, Inc. | 7096 |
4 |
| Agency for Science, Technology and Research | 3729 |
4 |
| Takeda Pharmaceutical Company Limited | 2715 |
4 |
| Banner Life Sciences LLC | 41 |
4 |
| Barclays Bank plc, AS Successor Agent | 119 |
4 |
| Nanyang Technological University | 2200 |
4 |
| Celanese EVA Performance Polymers LLC | 67 |
4 |
| Hewlett-Packard Development Company, L.P. | 25216 |
3 |
| Massachusetts Institute of Technology | 10239 |
3 |
| The Brigham and Women's Hospital, Inc. | 2282 |
3 |
| Other owners | 568 |