- All sections
- C - Chemistry; metallurgy
- C07D - Heterocyclic compounds
- C07D 213/12 - Preparation by ring-closure involving the use of ammonia, amines, amine salts, or nitriles from unsaturated compounds
Patent holdings for IPC class C07D 213/12
Total number of patents in this class: 46
10-year publication summary
|
5
|
1
|
3
|
1
|
2
|
3
|
3
|
3
|
2
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dow AgroSciences LLC | 1267 |
3 |
| F. Hoffmann-La Roche AG | 7958 |
2 |
| Boehringer Ingelheim International GmbH | 4629 |
2 |
| Uop LLC | 4083 |
2 |
| Enanta Pharmaceuticals, Inc. | 420 |
2 |
| Ligand Pharmaceuticals Incorporated | 121 |
2 |
| Vettore, LLC | 13 |
2 |
| Chiral Quest (Suzhou) Co., Ltd. | 6 |
2 |
| Corteva Agriscience LLC | 2494 |
2 |
| Jiangxi Longlife Bio-Pharmaceutical Co., Ltd. | 3 |
2 |
| Bristol-myers Squibb Company | 5080 |
1 |
| Merck Sharp & Dohme Corp. | 2247 |
1 |
| Centre National de La Recherche Scientifique | 9632 |
1 |
| Bayer Cropscience AG | 2241 |
1 |
| Takeda Pharmaceutical Company Limited | 2961 |
1 |
| Arena Pharmaceuticals, Inc. | 381 |
1 |
| Arkema France | 3790 |
1 |
| China Petroleum & Chemical Corporation | 1623 |
1 |
| Grünenthal GmbH | 625 |
1 |
| Hexal AG | 143 |
1 |
| Other owners | 15 |