- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 253/22 - Preparation of carboxylic acid nitriles by reaction of ammonia with carboxylic acids with replacement of carboxyl groups by cyano groups
Patent holdings for IPC class C07C 253/22
Total number of patents in this class: 59
10-year publication summary
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4
|
1
|
3
|
7
|
2
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8
|
3
|
3
|
4
|
1
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Arkema France | 4149 |
12 |
| Mitsubishi Gas Chemical Company, Inc. | 3466 |
12 |
| Alliance for Sustainable Energy, LLC | 803 |
7 |
| Mitsui Chemicals, Inc. | 3220 |
4 |
| Asahi Kasei Kabushiki Kaisha | 2677 |
4 |
| BioAmber S.A.S. | 20 |
4 |
| API Corporation | 225 |
3 |
| Hyundai Motor Company | 22044 |
1 |
| Kao Corporation | 4964 |
1 |
| ARAKAWA Chemical Industries, Ltd. | 150 |
1 |
| Ascend Performance Materials Operations LLC | 273 |
1 |
| Cecalc | 3 |
1 |
| Eastman Chemical Company | 2218 |
1 |
| Hangzhou Normal University | 62 |
1 |
| Rhodia Operations | 1586 |
1 |
| Anshan Hifichem Co., Ltd. | 6 |
1 |
| POSTECH Research and Business Development Foundation | 830 |
1 |
| Hangzhou Loop Biotech Co., Ltd | 2 |
1 |
| Nanjing Yanchang Reaction Technology Research Institute Co. Ltd | 120 |
1 |
| Kia Corporation | 9732 |
1 |
| Other owners | 0 |