- All sections
- C - Chemistrymetallurgy
- C01F - Compounds of the metals beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium, or of the rare earth metals
- C01F 7/47 - Purification of aluminium oxide, aluminium hydroxide or aluminates of aluminates, e.g. removal of compounds of Si, Fe, Ga or of organic compounds from Bayer process liquors
Patent holdings for IPC class C01F 7/47
Total number of patents in this class: 47
10-year publication summary
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2
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4
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4
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4
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1
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4
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3
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2
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2
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2
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Alcoa of Australia Limited | 46 |
8 |
| Ecolab USA Inc. | 5544 |
7 |
| Nalco Company | 570 |
5 |
| Rio Tinto ALCAN International Limited | 217 |
3 |
| Cytec Industries Inc. | 406 |
2 |
| Kemira Chemicals, Inc. | 80 |
2 |
| Kemira Oyj | 1219 |
2 |
| Obshchestvo S Ogranichennoy Otvetstvennost'yu "obedinennaya Kompaniya RUSAL Inzhenerno-tekhnologicheskiy Tsentr" | 133 |
2 |
| Peloton Resources Pty Ltd | 10 |
2 |
| Accentus plc | 5 |
1 |
| Commonwealth Scientific and Industrial Research Organisation | 1669 |
1 |
| Cytec Technology Corp. | 278 |
1 |
| The Government of the United States of America, as represented by the Secretary of the Navy | 1333 |
1 |
| Northeastern University | 544 |
1 |
| POSCO Co., Ltd. | 1576 |
1 |
| Very Small Particle Company Pty Ltd. | 2 |
1 |
| Water Mark Technologies, Inc. | 4 |
1 |
| Environmental Engineers International Pty Ltd | 2 |
1 |
| SCFI Limited | 9 |
1 |
| LG Energy Solution, Ltd. | 15482 |
1 |
| Other owners | 3 |