- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 309/71 - Esters of sulfonic acids having sulfur atoms of esterified sulfo groups bound to carbon atoms of rings other than six-membered aromatic rings
Patent holdings for IPC class C07C 309/71
Total number of patents in this class: 17
10-year publication summary
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1
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1
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1
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0
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1
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0
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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
|
|---|---|---|
| Sumitomo Chemical Company, Limited | 9043 |
3 |
| Shin-Etsu Chemical Co., Ltd. | 5669 |
1 |
| Kyocera Document Solutions Inc. | 5632 |
1 |
| JSR Corporation | 2527 |
1 |
| Council of Scientific and Industrial Research | 603 |
1 |
| Florida State University Research Foundation, Inc. | 750 |
1 |
| Galderma Research & Development | 404 |
1 |
| MERZ PHARMA GmbH & CO. KGaA | 612 |
1 |
| Ministry of Information Technology | 1 |
1 |
| Promerus, LLC | 142 |
1 |
| SDS Biotech K.K. | 101 |
1 |
| Sumitomo Bakelite Co., Ltd. | 1498 |
1 |
| Nissan Chemical Corporation | 2033 |
1 |
| Shin Sung Materials Co., Ltd. | 6 |
1 |
| Gowan Company, L.L.C. | 1 |
1 |
| Other owners | 0 |