- 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: 293
10-year publication summary
|
18
|
23
|
20
|
24
|
15
|
19
|
17
|
10
|
13
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The General Hospital Corporation | 4794 |
7 |
| Enzo Life Sciences, Inc. | 153 |
6 |
| University of Kansas | 896 |
6 |
| Johnson & Johnson Surgical Vision, Inc. | 930 |
6 |
| IGM Resins Italia S.r.l. | 40 |
5 |
| The University of British Columbia | 1536 |
5 |
| Fosun Orinove Pharmatech, Inc. | 12 |
5 |
| F. Hoffmann-La Roche AG | 7881 |
4 |
| Merck Patent GmbH | 5726 |
4 |
| Adeka Corporation | 1369 |
4 |
| Hach Company | 432 |
4 |
| Iowa State University Research Foundation, Inc. | 799 |
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 | 172 |
4 |
| Riken | 1703 |
4 |
| The University of Queensland | 669 |
4 |
| Ventana Medical Systems, Inc. | 1054 |
4 |
| Hubei Gurun Technology Co., Ltd | 36 |
4 |
| The Regents of the University of California | 20366 |
3 |
| Allergan, Inc. | 2265 |
3 |
| FUJIFILM Corporation | 30016 |
3 |
| Other owners | 204 |