- All sections
- C - Chemistry; metallurgy
- C01B - Non-metallic elements; compounds thereof
- C01B 17/12 - Insoluble sulfur (mu-sulfur)
Patent holdings for IPC class C01B 17/12
Total number of patents in this class: 13
10-year publication summary
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0
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3
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1
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0
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3
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3
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0
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1
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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
|
|---|---|---|
| Flexsys Holdings, Inc. | 21 |
3 |
| China Petroleum & Chemical Corporation | 1783 |
2 |
| Shandong Yanggu Huatai Chemical Co., Ltd. | 4 |
2 |
| Arkema France | 3889 |
1 |
| China University of Petroleum (East China) | 347 |
1 |
| Eastman Chemical Company | 2258 |
1 |
| Sennics Co., Ltd. | 93 |
1 |
| Dalian Research Institute of Petroleum and Petrochemicals, Sinopec Corp. | 61 |
1 |
| Sinopec Dalian Research Institute of Petroleum and Petrochemicals Co., Ltd. | 74 |
1 |
| Other owners | 0 |