- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 231/52 - Oxygen atom in position 3 and nitrogen atom in position 5, or vice-versa
Patent holdings for IPC class C07D 231/52
Total number of patents in this class: 46
10-year publication summary
|
7
|
1
|
2
|
6
|
2
|
4
|
0
|
2
|
1
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bayer Cropscience AG | 2055 |
8 |
| Sumitomo Chemical Company, Limited | 9027 |
7 |
| Epigen Biosciences, Inc. | 13 |
7 |
| Array BioPharma Inc. | 503 |
6 |
| Kumiai Chemical Industry Co., Ltd. | 312 |
3 |
| Ligand Pharmaceuticals Incorporated | 167 |
3 |
| Ihara Chemical Industry Co., Ltd. | 71 |
2 |
| Unimatec Co., Ltd. | 235 |
2 |
| Bayer Healthcare AG | 98 |
1 |
| Auspex Pharmaceuticals, Inc. | 187 |
1 |
| Galapagos SAS | 4 |
1 |
| Nagoya City University | 23 |
1 |
| Otsuka Chemical Co., Ltd. | 290 |
1 |
| Techno Guard Co., Ltd. | 15 |
1 |
| The University of Tokyo | 4162 |
1 |
| L' Oréal | 5508 |
1 |
| Other owners | 0 |