- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 253/20 - Preparation of carboxylic acid nitriles by dehydratation of carboxylic acid amides
Patent holdings for IPC class C07C 253/20
Total number of patents in this class: 50
10-year publication summary
|
1
|
1
|
4
|
5
|
4
|
7
|
5
|
2
|
6
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bayer Cropscience AG | 2136 |
4 |
| API Corporation | 228 |
4 |
| Novomer, Inc. | 209 |
4 |
| Merck Patent GmbH | 5848 |
3 |
| BioAmber S.A.S. | 20 |
3 |
| PI Industries Ltd | 159 |
3 |
| Janssen Pharmaceutica N.V. | 3611 |
2 |
| Mitsubishi Gas Chemical Company, Inc. | 3349 |
2 |
| Solvay SA | 1029 |
2 |
| Shenyang Sinochem Agrochemicals R&D Co., Ltd. | 104 |
2 |
| Nanjing Yanchang Reaction Technology Research Institute Co. Ltd | 120 |
2 |
| BASF SE | 20421 |
1 |
| Daikin Industries, Ltd. | 9851 |
1 |
| Toray Industries, Inc. | 6857 |
1 |
| ADAMA Makhteshim Ltd. | 474 |
1 |
| Archimica GmbH | 18 |
1 |
| Central South University | 407 |
1 |
| Euticals GmbH | 4 |
1 |
| Fudan University | 644 |
1 |
| Institute of Process Engineering, Chinese Academy of Sciences | 280 |
1 |
| Other owners | 10 |