- All sections
- C - Chemistrymetallurgy
- C01C - Ammoniacyanogencompounds thereof
- C01C 1/20 - SulfidesPolysulfides
Patent holdings for IPC class C01C 1/20
Total number of patents in this class: 7
10-year publication summary
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0
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1
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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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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 | 2026 |
2 |
| Chevron Phillips Chemical Company LP | 1853 |
1 |
| Fushun Research Institute of Petroleum and Petrochemicals, Sinopec Corp. | 49 |
1 |
| Research Institute of Petroleum Processing, Sinopec | 366 |
1 |
| Siirtec Nigi SpA | 3 |
1 |
| American River Nutrition, LLC | 18 |
1 |
| Other owners | 0 |