- All sections
- A - Human necessities
- A61K - Preparations for medical, dental or toiletry purposes
- A61K 31/55 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having seven-membered rings, e.g. azelastine, pentylenetetrazole
Patent holdings for IPC class A61K 31/55
Total number of patents in this class: 6034
10-year publication summary
|
433
|
414
|
475
|
440
|
440
|
458
|
487
|
424
|
370
|
106
|
| 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 |
133 |
| Novartis AG | 11238 |
79 |
| Boehringer Ingelheim International GmbH | 4629 |
67 |
| Takeda Pharmaceutical Company Limited | 2961 |
63 |
| Merck Sharp & Dohme LLC | 3689 |
63 |
| Janssen Pharmaceutica N.V. | 3839 |
54 |
| Les Laboratoires Servier | 599 |
54 |
| Demerx, Inc. | 73 |
50 |
| The Regents of the University of California | 18943 |
46 |
| Astellas Pharma Inc. | 1145 |
43 |
| F. Hoffmann-La Roche AG | 7958 |
41 |
| Genentech, Inc. | 3742 |
41 |
| Millennium Pharmaceuticals, Inc. | 488 |
37 |
| Constellation Pharmaceuticals, Inc. | 200 |
33 |
| Eli Lilly and Company | 3645 |
33 |
| Pfizer Inc. | 3322 |
31 |
| Arena Pharmaceuticals, Inc. | 381 |
31 |
| Dana-Farber Cancer Institute, Inc. | 2455 |
31 |
| Otsuka Pharmaceutical Co., Ltd. | 1426 |
31 |
| Rigel Pharmaceuticals, Inc. | 613 |
29 |
| Other owners | 5044 |