- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 17/18 - Hydrogen polysulfides
Patent holdings for IPC class C01B 17/18
Total number of patents in this class: 2
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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1
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0
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0
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1
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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
|
|---|---|---|
| Brown University | 664 |
1 |
| Paqell B.V. | 28 |
1 |
| Other owners | 0 |