- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 309/13 - Sulfonic acids having sulfo groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton containing nitrogen atoms, not being part of nitro or nitroso groups, bound to the carbon skeleton
Patent holdings for IPC class C07C 309/13
Total number of patents in this class: 27
10-year publication summary
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3
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2
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3
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6
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0
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0
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1
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2
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1
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0
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shin-Etsu Chemical Co., Ltd. | 6157 |
3 |
| FUJIFILM Corporation | 30808 |
2 |
| Novabay Pharmaceuticals, Inc. | 26 |
2 |
| NUtech Ventures | 369 |
2 |
| Otsuka Pharmaceutical Co., Ltd. | 1512 |
2 |
| Shell Internationale Research Maatschappij B.V. | 3378 |
1 |
| Allergan, Inc. | 2145 |
1 |
| Sumitomo Chemical Company, Limited | 8992 |
1 |
| Shell Oil Company | 2054 |
1 |
| Wisconsin Alumni Research Foundation | 3903 |
1 |
| Daikin Industries, Ltd. | 10540 |
1 |
| Astellas Pharma Inc. | 1041 |
1 |
| BHI Limited Partnership | 3 |
1 |
| Limited Liability Company "NEARMEDIC PLUS" | 20 |
1 |
| National Institutes for Quantum and Radiological Science and Technology | 101 |
1 |
| Riken | 1724 |
1 |
| Siemens Healthcare Diagnostics Inc. | 2161 |
1 |
| Toyo Gosei Co., Ltd. | 107 |
1 |
| CMBlu Projekt AG | 21 |
1 |
| Cmblu Energy AG | 58 |
1 |
| Other owners | 1 |