- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 491/052 - Ortho-condensed systems with only one oxygen atom as ring hetero atom in the oxygen-containing ring the oxygen-containing ring being six-membered
Patent holdings for IPC class C07D 491/052
Total number of patents in this class: 1102
10-year publication summary
|
85
|
65
|
71
|
72
|
72
|
60
|
82
|
91
|
80
|
61
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Gilead Sciences, Inc. | 2056 |
36 |
| Bristol-myers Squibb Company | 4849 |
24 |
| Merck Sharp & Dohme LLC | 3753 |
21 |
| Novartis AG | 10721 |
16 |
| Eli Lilly and Company | 3902 |
16 |
| Merck Patent GmbH | 5767 |
15 |
| F. Hoffmann-La Roche AG | 7948 |
14 |
| Boehringer Ingelheim International GmbH | 4640 |
13 |
| Vertex Pharmaceuticals Incorporated | 1626 |
13 |
| Daiichi Sankyo Company, Limited | 1877 |
13 |
| Takeda Pharmaceutical Company Limited | 2710 |
12 |
| FUJIFILM Corporation | 29696 |
10 |
| Arbutus Biopharma Corporation | 177 |
10 |
| Genentech, Inc. | 4009 |
9 |
| Merck Sharp & Dohme Corp. | 2190 |
9 |
| Hoffmann-La Roche Inc. | 3478 |
8 |
| The Regents of the University of California | 20108 |
8 |
| Janssen Pharmaceutica N.V. | 3367 |
8 |
| Emory University | 1639 |
8 |
| Kadmon Corporation, LLC | 100 |
8 |
| Other owners | 831 |