- All sections
- A - Human necessities
- A61K - Preparations for medical, dental or toiletry purposes
- A61K 31/4458 - Non-condensed piperidines, e.g. piperocaine only substituted in position 2, e.g. methylphenidate
Patent holdings for IPC class A61K 31/4458
Total number of patents in this class: 441
10-year publication summary
|
60
|
58
|
48
|
55
|
54
|
45
|
37
|
19
|
20
|
10
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ironshore Pharmaceuticals & Development, Inc. | 36 |
25 |
| Tris Pharma, Inc. | 79 |
19 |
| Ohemo Life Sciences Inc | 23 |
18 |
| Purdue Pharma L.P. | 501 |
16 |
| Gilrose Pharmaceuticals, LLC | 17 |
15 |
| InCarda Therapeutics, Inc. | 40 |
13 |
| Medisca Pharmaceutique Inc. | 138 |
12 |
| Zevra Therapeutics, Inc. | 99 |
11 |
| Provident Bank | 40 |
10 |
| Clexio Biosciences Ltd. | 102 |
10 |
| Noven Pharmaceuticals, Inc. | 103 |
8 |
| Pacira Pharmaceuticals, Inc. | 110 |
8 |
| Amneal Complex Products Research LLC | 65 |
8 |
| Neos Therapeutics, LP | 24 |
7 |
| Heron Therapeutics, Inc. | 154 |
6 |
| Incept LLC | 150 |
5 |
| Inserm (institut National de La Sante et de La Recherche Medicale) | 3361 |
5 |
| KemPharm, Inc. | 28 |
5 |
| Purdue Pharma | 68 |
5 |
| Acella Holdings, LLC | 20 |
5 |
| Other owners | 230 |