- All sections
- C - Chemistry; metallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 253/16 - Preparation of carboxylic acid nitriles by reaction of cyanides with lactones or compounds containing hydroxy groups or etherified or esterified hydroxy groups
Patent holdings for IPC class C07C 253/16
Total number of patents in this class: 12
10-year publication summary
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3
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0
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1
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0
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2
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2
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1
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0
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2
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0
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Evonik Operations GmbH | 4021 |
2 |
| E. I. du Pont de Nemours and Company | 4249 |
1 |
| Evonik Röhm GmbH | 451 |
1 |
| Sumitomo Chemical Company, Limited | 8988 |
1 |
| Arkema France | 3889 |
1 |
| Calixar | 9 |
1 |
| Korea Kumho Petrochemical Co., Ltd. | 185 |
1 |
| Solvay SA | 1030 |
1 |
| SRI International | 1000 |
1 |
| Haldor Topsøe A/S | 674 |
1 |
| Topsoe A/S | 829 |
1 |
| Other owners | 0 |