- All sections
- C - Chemistry; metallurgy
- 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
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4
|
5
|
3
|
2
|
3
|
1
|
6
|
1
|
4
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| GE Healthcare AS | 235 |
7 |
| The Johns Hopkins University | 5529 |
5 |
| Merck Sharp & Dohme LLC | 3746 |
4 |
| Boehringer Ingelheim International GmbH | 4751 |
2 |
| Fusion Pharmaceuticals Inc. | 82 |
2 |
| BWXT ITG Canada, Inc. | 6 |
2 |
| F. Hoffmann-La Roche AG | 7938 |
1 |
| Merck & Co., Inc. | 447 |
1 |
| Merck Sharp & Dohme Corp. | 2219 |
1 |
| Honeywell International Inc. | 14012 |
1 |
| Allergan, Inc. | 2441 |
1 |
| Bayer Cropscience AG | 2141 |
1 |
| The United States of America as represented by the Secretary of the Navy | 2722 |
1 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10694 |
1 |
| The General Hospital Corporation | 4645 |
1 |
| Purdue Research Foundation | 3475 |
1 |
| ArQule, Inc. | 139 |
1 |
| Biophore India Pharmaceuticals Pvt. Ltd. | 71 |
1 |
| Bracco Imaging S.p.A. | 315 |
1 |
| DSM Sinochem Pharmaceuticals Netherlands B.V. | 60 |
1 |
| Other owners | 26 |