- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 25/047 - Purification of phosphorus of yellow phosphorus
Patent holdings for IPC class C01B 25/047
Total number of patents in this class: 11
10-year publication summary
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1
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1
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2
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1
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0
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1
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1
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1
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2
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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
|
|---|---|---|
| Lanxess Deutschland GmbH | 1123 |
3 |
| Intermet Technologies Chengdu Co., Ltd | 20 |
2 |
| Rin Kagaku Kogyo Co., Ltd. | 3 |
2 |
| Kunming University of Science and Technology | 178 |
1 |
| OCI Company Ltd. | 152 |
1 |
| The Ritsumeikan Trust | 159 |
1 |
| Zhengzhou University | 123 |
1 |
| Other owners | 0 |