- 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: 1092
10-year publication summary
|
95
|
74
|
78
|
78
|
81
|
77
|
103
|
103
|
85
|
49
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Gilead Sciences, Inc. | 2036 |
36 |
| Bristol-myers Squibb Company | 4898 |
24 |
| Merck Sharp & Dohme LLC | 3748 |
21 |
| Merck Patent GmbH | 5831 |
17 |
| Novartis AG | 10849 |
16 |
| Eli Lilly and Company | 3842 |
16 |
| F. Hoffmann-La Roche AG | 7925 |
14 |
| Vertex Pharmaceuticals Incorporated | 1597 |
13 |
| Daiichi Sankyo Company, Limited | 1869 |
13 |
| Takeda Pharmaceutical Company Limited | 2713 |
12 |
| Boehringer Ingelheim International GmbH | 4650 |
11 |
| FUJIFILM Corporation | 29367 |
10 |
| Arbutus Biopharma Corporation | 177 |
10 |
| Genentech, Inc. | 3976 |
9 |
| Merck Sharp & Dohme Corp. | 2194 |
9 |
| Hoffmann-La Roche Inc. | 3418 |
8 |
| The Regents of the University of California | 19918 |
8 |
| Emory University | 1626 |
8 |
| Kadmon Corporation, LLC | 95 |
8 |
| Vanderbilt University | 1901 |
8 |
| Other owners | 821 |