- All sections
- C - Chemistrymetallurgy
- 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: 366
10-year publication summary
|
24
|
27
|
28
|
25
|
18
|
26
|
21
|
30
|
20
|
15
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Achillion Pharmaceuticals, Inc. | 157 |
28 |
| Alkermes Pharma Ireland Limited | 254 |
15 |
| Gilead Sciences, Inc. | 2226 |
11 |
| Arbutus Biopharma Corporation | 161 |
9 |
| Bristol-myers Squibb Company | 4751 |
8 |
| Bayer Cropscience AG | 1841 |
7 |
| Astellas Pharma Inc. | 1043 |
6 |
| F. Hoffmann-La Roche AG | 7819 |
5 |
| The Regents of the University of California | 20778 |
5 |
| Shionogi & Co., Ltd. | 880 |
5 |
| Inthera Bioscience AG | 10 |
5 |
| Merck Sharp & Dohme LLC | 3736 |
5 |
| Janssen Pharmaceutica N.V. | 3162 |
4 |
| Merck Patent GmbH | 5729 |
4 |
| Abbvie Inc. | 1824 |
4 |
| Astex Therapeutics Limited | 207 |
4 |
| Blueprint Medicines Corporation | 253 |
4 |
| Kinki University | 248 |
4 |
| Korea University Research and Business Foundation | 3271 |
4 |
| Kotobuki Pharmaceutical Co., Ltd. | 34 |
4 |
| Other owners | 225 |