- All sections
- C - Chemistrymetallurgy
- 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: 290
10-year publication summary
|
27
|
20
|
24
|
22
|
26
|
16
|
21
|
20
|
10
|
9
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The General Hospital Corporation | 4733 |
7 |
| Enzo Life Sciences, Inc. | 162 |
6 |
| University of Kansas | 873 |
6 |
| Johnson & Johnson Surgical Vision, Inc. | 951 |
6 |
| IGM Resins Italia S.r.l. | 40 |
5 |
| The University of British Columbia | 1501 |
5 |
| Fosun Orinove Pharmatech, Inc. | 13 |
5 |
| F. Hoffmann-La Roche AG | 7925 |
4 |
| Merck Patent GmbH | 5831 |
4 |
| Adeka Corporation | 1362 |
4 |
| Hach Company | 424 |
4 |
| Iowa State University Research Foundation, Inc. | 775 |
4 |
| The Provost, Fellows, Foundation Scholars, and The Other Members of Board, of The College of The Holy and Undivided Trinity of Queen Elizabeth, Near Dublin | 163 |
4 |
| Riken | 1689 |
4 |
| The University of Queensland | 660 |
4 |
| Hubei Gurun Technology Co., Ltd | 32 |
4 |
| The Regents of the University of California | 19918 |
3 |
| Allergan, Inc. | 2349 |
3 |
| FUJIFILM Corporation | 29367 |
3 |
| Sumitomo Chemical Company, Limited | 9046 |
3 |
| Other owners | 202 |