- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 309/49 - Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing nitrogen atoms, not being part of nitro or nitroso groups, bound to the carbon skeleton the carbon skeleton being further substituted by singly-bound oxygen atoms
Patent holdings for IPC class C07C 309/49
Total number of patents in this class: 15
10-year publication summary
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1
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1
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3
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2
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2
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2
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0
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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
|
|---|---|---|
| China Petroleum & Chemical Corporation | 2173 |
2 |
| Shanghai Research Institute of Petrochemical Technology Sinopec | 259 |
2 |
| Provepharm Life Solutions | 62 |
2 |
| ALFA INSTRUMENTS S.r.l. | 10 |
2 |
| Henkel AG & Co. KGaA | 10774 |
1 |
| Alcon, Inc. | 347 |
1 |
| DONGWOO FINE-CHEM Co., Ltd. | 1441 |
1 |
| Nankai University | 263 |
1 |
| PetroChina Company Limited | 887 |
1 |
| Nflection Therapeutics, Inc. | 37 |
1 |
| Cmblu Energy AG | 58 |
1 |
| Other owners | 0 |