- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 257/00 - Heterocyclic compounds containing rings having four nitrogen atoms as the only ring hetero atoms
Patent holdings for IPC class C07D 257/00
Total number of patents in this class: 62
10-year publication summary
|
3
|
5
|
2
|
2
|
3
|
1
|
5
|
1
|
4
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| GE Healthcare AS | 224 |
7 |
| The Johns Hopkins University | 5723 |
5 |
| Merck Sharp & Dohme LLC | 3756 |
4 |
| Boehringer Ingelheim International GmbH | 4648 |
2 |
| Bracco Imaging S.p.A. | 318 |
2 |
| Translate bio, Inc. | 416 |
2 |
| Fusion Pharmaceuticals Inc. | 86 |
2 |
| BWXT ITG Canada, Inc. | 6 |
2 |
| F. Hoffmann-La Roche AG | 7947 |
1 |
| Merck Sharp & Dohme Corp. | 2190 |
1 |
| Honeywell International Inc. | 13552 |
1 |
| Allergan, Inc. | 2334 |
1 |
| Bayer Cropscience AG | 2009 |
1 |
| The United States of America as represented by the Secretary of the Navy | 2784 |
1 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10956 |
1 |
| The General Hospital Corporation | 4781 |
1 |
| Purdue Research Foundation | 3676 |
1 |
| ArQule, Inc. | 135 |
1 |
| Biophore India Pharmaceuticals Pvt. Ltd. | 80 |
1 |
| DSM Sinochem Pharmaceuticals Netherlands B.V. | 60 |
1 |
| Other owners | 24 |