- All sections
- C - Chemistry; metallurgy
- C07D - Heterocyclic compounds
- C07D 311/16 - Benzo [b] pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 2 not hydrogenated in the hetero ring substituted in position 7
Patent holdings for IPC class C07D 311/16
Total number of patents in this class: 280
10-year publication summary
|
29
|
27
|
20
|
24
|
21
|
26
|
15
|
21
|
17
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The General Hospital Corporation | 4517 |
7 |
| Enzo Life Sciences, Inc. | 174 |
6 |
| University of Kansas | 838 |
6 |
| Fosun Orinove Pharmatech, Inc. | 16 |
6 |
| Johnson & Johnson Surgical Vision, Inc. | 968 |
6 |
| IGM Resins Italia S.r.l. | 32 |
5 |
| The University of British Columbia | 1432 |
5 |
| F. Hoffmann-La Roche AG | 7958 |
4 |
| Merck Patent GmbH | 5909 |
4 |
| Adeka Corporation | 1333 |
4 |
| Riken | 1669 |
4 |
| Ventana Medical Systems, Inc. | 972 |
4 |
| The Regents of the University of California | 18943 |
3 |
| Allergan, Inc. | 2600 |
3 |
| Sumitomo Chemical Company, Limited | 8808 |
3 |
| Dow Global Technologies LLC | 10147 |
3 |
| Northwestern University | 3112 |
3 |
| Alltech, Inc. | 297 |
3 |
| AMO Ireland | 7 |
3 |
| Drexel University | 951 |
3 |
| Other owners | 195 |