- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 309/33 - Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton of six-membered aromatic rings being part of condensed ring systems
Patent holdings for IPC class C07C 309/33
Total number of patents in this class: 8
10-year publication summary
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2
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2
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0
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0
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1
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1
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0
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0
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0
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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
|
|---|---|---|
| DuPont Electronic Materials International, LLC | 365 |
2 |
| ChemoCentryx, Inc. | 392 |
1 |
| Concordia University, Inc. | 19 |
1 |
| Marquette University | 148 |
1 |
| The Medical College of Wisconsin, Inc. | 387 |
1 |
| Universitat Wien | 80 |
1 |
| Suzhou Graphene-tech Co., Ltd. | 4 |
1 |
| Other owners | 0 |