- All sections
- C - Chemistry; metallurgy
- C07D - Heterocyclic compounds
- C07D 491/113 - Spiro-condensed systems with two or more oxygen atoms as ring hetero atoms in the oxygen-containing ring
Patent holdings for IPC class C07D 491/113
Total number of patents in this class: 345
10-year publication summary
|
27
|
24
|
27
|
28
|
25
|
17
|
26
|
20
|
27
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Achillion Pharmaceuticals, Inc. | 169 |
29 |
| Alkermes Pharma Ireland Limited | 289 |
13 |
| Arbutus Biopharma Corporation | 189 |
9 |
| Gilead Sciences, Inc. | 1949 |
9 |
| Bristol-myers Squibb Company | 4886 |
8 |
| F. Hoffmann-La Roche AG | 7942 |
7 |
| Bayer Cropscience AG | 2143 |
7 |
| Astellas Pharma Inc. | 1122 |
7 |
| The Regents of the University of California | 19479 |
5 |
| Merck Patent GmbH | 5849 |
5 |
| Kinki University | 233 |
5 |
| Nippon Chemiphar Co., Ltd. | 236 |
5 |
| Shionogi & Co., Ltd. | 890 |
5 |
| Inthera Bioscience AG | 9 |
5 |
| Merck Sharp & Dohme LLC | 3742 |
5 |
| Janssen Pharmaceutica N.V. | 3625 |
4 |
| Abbvie Inc. | 1781 |
4 |
| Astex Therapeutics Limited | 257 |
4 |
| KalVista Pharmaceuticals Limited | 115 |
4 |
| Kotobuki Pharmaceutical Co., Ltd. | 39 |
4 |
| Other owners | 201 |