- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 25/237 - Selective elimination of impurities
Patent holdings for IPC class C01B 25/237
Total number of patents in this class: 27
10-year publication summary
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0
|
0
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4
|
1
|
1
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0
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2
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4
|
2
|
1
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Urtek, LLC | 9 |
3 |
| Ecophos | 7 |
2 |
| Guangdong Brunp Recycling Technology Co., Ltd | 1274 |
2 |
| Hunan Brunp Recycling Technology Co., Ltd. | 1227 |
2 |
| Université Mohammed VI Polytechnique | 66 |
2 |
| 3m Innovative Properties Company | 17465 |
1 |
| Ajinomoto Co., Inc. | 2287 |
1 |
| Cppe Carbon Process & Plant Engineering S.A. | 17 |
1 |
| Cytec Industries Inc. | 415 |
1 |
| Institute of Process Engineering, Chinese Academy of Sciences | 333 |
1 |
| JDCPhosphate, Inc. | 3 |
1 |
| Prayon | 13 |
1 |
| Prayon Technologies | 50 |
1 |
| Sulzer Chemtech AG | 60 |
1 |
| Sulzer Management AG | 719 |
1 |
| Yara International ASA | 911 |
1 |
| Tenova Advanced Technologies Ltd. | 17 |
1 |
| Hubei Forbon Technology Co., Ltd. | 42 |
1 |
| Jesa Technologies LLC | 7 |
1 |
| Takhim for Technology and Business Services | 4 |
1 |
| Other owners | 1 |