- All sections
- A - Human necessities
- A61K - Preparations for medical, dental or toiletry purposes
- A61K 31/535 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with at least one nitrogen and at least one oxygen as the ring hetero atoms, e.g. 1,2-oxazines
Patent holdings for IPC class A61K 31/535
Total number of patents in this class: 1282
10-year publication summary
|
87
|
92
|
63
|
49
|
33
|
41
|
21
|
22
|
20
|
6
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bristol-myers Squibb Company | 5080 |
29 |
| Janssen Pharmaceutica N.V. | 3839 |
29 |
| Glaxosmithkline LLC | 566 |
28 |
| Merck Sharp & Dohme LLC | 3689 |
27 |
| Boehringer Ingelheim International GmbH | 4629 |
26 |
| Novartis AG | 11238 |
22 |
| Merck Sharp & Dohme Corp. | 2247 |
22 |
| F. Hoffmann-La Roche AG | 7958 |
19 |
| Allergan, Inc. | 2600 |
18 |
| Shionogi & Co., Ltd. | 914 |
17 |
| Curis, Inc. | 130 |
14 |
| The Regents of the University of California | 18943 |
12 |
| Genentech, Inc. | 3742 |
12 |
| Rigel Pharmaceuticals, Inc. | 613 |
12 |
| Glaxo Group Limited | 4496 |
11 |
| Gilead Sciences, Inc. | 1879 |
11 |
| The Trustees of Columbia University in the City of New York | 3440 |
10 |
| SmithKline Beecham Corporation | 304 |
9 |
| Hoffmann-La Roche Inc. | 3060 |
8 |
| Merck & Co., Inc. | 607 |
8 |
| Other owners | 938 |