- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 23/04 - Sulfonates or sulfuric acid ester salts derived from polyhydric alcohols or amino alcohols or derivatives thereof
Patent holdings for IPC class C09K 23/04
Total number of patents in this class: 16
10-year publication summary
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0
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0
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0
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0
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0
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0
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3
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3
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2
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3
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Adeka Corporation | 1363 |
2 |
| BASF SE | 20915 |
1 |
| Toyota Motor Corporation | 32331 |
1 |
| China Petroleum & Chemical Corporation | 1908 |
1 |
| Clariant International Ltd. | 937 |
1 |
| Flotek Chemistry, LLC | 116 |
1 |
| Innospec Active Chemicals LLC | 21 |
1 |
| NOK Corporation | 2220 |
1 |
| Saudi Arabian Oil Company | 13206 |
1 |
| Sinopec Oilfield Service Corporation | 29 |
1 |
| Solenis Technologies, L.P. | 335 |
1 |
| Integrity Bio-chemicals, LLC | 53 |
1 |
| Sinopec Shengli Petroleum Engineering Co., Ltd | 31 |
1 |
| Drilling Fluid Technology Service Center of Sinopec Shengli Petroleum Engineering Co., Ltd | 4 |
1 |
| BASF SE | 16 |
1 |
| Other owners | 0 |