- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 49/657 - Unsaturated compounds containing a keto group being part of a ring containing six-membered aromatic rings
Patent holdings for IPC class C07C 49/657
Total number of patents in this class: 25
10-year publication summary
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0
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1
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3
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1
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3
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0
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1
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0
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1
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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
|
|---|---|---|
| Tohoku University | 2799 |
3 |
| Ecolab USA Inc. | 5507 |
2 |
| Nalco Company | 573 |
2 |
| The Regents of the University of California | 20015 |
1 |
| Syngenta Limited | 454 |
1 |
| Canon Inc. | 40216 |
1 |
| Abraxis BioScience, Inc. | 12 |
1 |
| BP Corporation North America Inc. | 745 |
1 |
| Daiichi Sankyo Company, Limited | 1881 |
1 |
| Kuality Herbceutics LLC | 6 |
1 |
| Kureha Corporation | 1032 |
1 |
| Kyoeisha Chemical Co., Ltd. | 82 |
1 |
| National University Corporation Tokyo Medical and Dental University | 519 |
1 |
| Nissan Chemical Industries, Ltd. | 1707 |
1 |
| Okinawa Institute of Science and Technology School Corporation | 156 |
1 |
| Sophia School Corporation | 72 |
1 |
| Southern Research Institute | 210 |
1 |
| Studiengesellschaft Kohle mbH | 105 |
1 |
| University of Rochester | 1308 |
1 |
| Guangdong University of Petrochemical Technology | 50 |
1 |
| Other owners | 1 |