- 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: 57
10-year publication summary
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1
|
4
|
5
|
4
|
7
|
5
|
2
|
6
|
3
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bayer Cropscience AG | 1841 |
4 |
| BioAmber S.A.S. | 20 |
3 |
| PI Industries Ltd | 199 |
3 |
| Ube Corporation | 452 |
3 |
| Novomer LLC | 76 |
3 |
| Janssen Pharmaceutica N.V. | 3162 |
2 |
| ADAMA Makhteshim Ltd. | 563 |
2 |
| KS Laboratories Co., Ltd. | 19 |
2 |
| Mitsubishi Gas Chemical Company, Inc. | 3624 |
2 |
| Sinochem Lantian Co., Ltd. | 74 |
2 |
| UDC Ireland Limited | 508 |
2 |
| Shenyang Sinochem Agrochemicals R&D Co., Ltd. | 108 |
2 |
| Zhejiang Research Institute of Chemical Industry Co., Ltd | 57 |
2 |
| Nanjing Yanchang Reaction Technology Research Institute Co. Ltd | 120 |
2 |
| KS Optical Co., Ltd. | 8 |
2 |
| BASF SE | 21308 |
1 |
| Merck Patent GmbH | 5729 |
1 |
| Daikin Industries, Ltd. | 10504 |
1 |
| Toray Industries, Inc. | 7111 |
1 |
| API Corporation | 188 |
1 |
| Other owners | 16 |