- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 23/18 - Quaternary ammonium compounds
Patent holdings for IPC class C09K 23/18
Total number of patents in this class: 44
10-year publication summary
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0
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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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7
|
6
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10
|
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
|
|---|---|---|
| Saudi Arabian Oil Company | 13316 |
8 |
| Kao Corporation | 4979 |
3 |
| King Fahd University of Petroleum & Minerals | 180 |
3 |
| BlueScope Steel Limited | 208 |
2 |
| China Petroleum & Chemical Corporation | 1907 |
2 |
| NOK Corporation | 2223 |
2 |
| Shanghai Research Institute of Petrochemical Technology Sinopec | 264 |
2 |
| Sphere Fluidics Limited | 69 |
2 |
| China Research Institute of Daily Chemistry Co., Ltd | 4 |
2 |
| BASF SE | 20961 |
1 |
| Toyota Motor Corporation | 32681 |
1 |
| Tsinghua University | 5943 |
1 |
| Advansix Resins & Chemicals LLC | 300 |
1 |
| Akzo Nobel Chemicals International B.V. | 436 |
1 |
| Archer Daniels Midland Company | 1135 |
1 |
| Clariant International Ltd. | 931 |
1 |
| Ecolab USA Inc. | 5509 |
1 |
| GOJO Industries, Inc. | 883 |
1 |
| Miyoshi Oil & Fat Co., Ltd. | 100 |
1 |
| Ohio Soybean Council | 14 |
1 |
| Other owners | 7 |