- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 51/087 - Preparation of carboxylic acids or their salts, halides, or anhydrides from carboxylic acid anhydrides by hydrolysis
Patent holdings for IPC class C07C 51/087
Total number of patents in this class: 27
10-year publication summary
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0
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4
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1
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2
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1
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2
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5
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1
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1
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2
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Celanese International Corporation | 910 |
4 |
| Eastman Chemical Company | 2216 |
4 |
| Nederlandse Organisatie voor Toegepast-natuurwetenschappelijk Onderzoek TNO | 2381 |
4 |
| Nissui Corporation | 61 |
3 |
| Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation | 295 |
2 |
| China Petroleum & Chemical Corporation | 1903 |
2 |
| Thirumalai Chemicals Limited | 6 |
2 |
| Sabic Innovative Plastics IP B.V. | 681 |
1 |
| AMT International, Inc. | 45 |
1 |
| Daicel Corporation | 2354 |
1 |
| Everfront Biotech Inc. | 12 |
1 |
| Microvast Power Systems Co., Ltd. | 146 |
1 |
| Oakland City University, founded by General Baptists, Inc. | 5 |
1 |
| Other owners | 0 |