- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 491/20 - Spiro-condensed systems
Patent holdings for IPC class C07D 491/20
Total number of patents in this class: 560
10-year publication summary
|
46
|
37
|
44
|
39
|
43
|
35
|
42
|
37
|
37
|
31
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hoffmann-La Roche Inc. | 3825 |
18 |
| Shionogi & Co., Ltd. | 884 |
16 |
| Merck Sharp & Dohme LLC | 3738 |
14 |
| Boehringer Ingelheim International GmbH | 4485 |
12 |
| Sjp Biotec GmbH | 31 |
12 |
| Vertex Pharmaceuticals Incorporated | 1575 |
11 |
| Bristol-myers Squibb Company | 4764 |
10 |
| Pfizer Inc. | 3413 |
10 |
| Merck Patent GmbH | 5739 |
10 |
| Amgen Inc. | 4436 |
10 |
| F. Hoffmann-La Roche AG | 7800 |
9 |
| Glaxosmithkline Intellectual Property Development Limited | 780 |
9 |
| The Regents of the University of Michigan | 5023 |
9 |
| Oncopia Therapeutics, Inc. | 48 |
9 |
| Xenon Pharmaceuticals Inc. | 195 |
8 |
| Novartis AG | 10175 |
7 |
| LG Chem, Ltd. | 17956 |
7 |
| Denali Therapeutics Inc. | 272 |
7 |
| Medshine Discovery Inc. | 588 |
7 |
| GAN & Lee Pharmaceuticals Co., Ltd. | 60 |
7 |
| Other owners | 358 |