- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 491/04 - Ortho-condensed systems
Patent holdings for IPC class C07D 491/04
Total number of patents in this class: 1131
10-year publication summary
|
52
|
59
|
89
|
70
|
70
|
66
|
84
|
73
|
60
|
27
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bristol-myers Squibb Company | 4878 |
38 |
| Merck Patent GmbH | 5830 |
35 |
| F. Hoffmann-La Roche AG | 7930 |
29 |
| Gilead Sciences, Inc. | 2037 |
28 |
| Genentech, Inc. | 3971 |
27 |
| Novartis AG | 10847 |
25 |
| Merck Sharp & Dohme LLC | 3750 |
20 |
| Boehringer Ingelheim International GmbH | 4656 |
18 |
| Janssen Pharmaceutica N.V. | 3395 |
18 |
| Amura Therapeutics Limited | 14 |
12 |
| The Trustees of Columbia University in the City of New York | 3566 |
11 |
| Illumina Cambridge Limited | 678 |
11 |
| Royalty Security, LLC | 24 |
11 |
| Syngenta Crop Protection AG | 6045 |
10 |
| Rigel Pharmaceuticals, Inc. | 539 |
10 |
| Schering Corporation | 454 |
10 |
| BASF SE | 20926 |
9 |
| LG Chem, Ltd. | 17620 |
9 |
| PTC Therapeutics, Inc. | 483 |
9 |
| Hoffmann-La Roche Inc. | 3414 |
8 |
| Other owners | 783 |