- All sections
- C - Chemistry; metallurgy
- C01F - Compounds of the metals beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium, or of the rare earth metals
- C01F 7/46 - Purification of aluminium oxide, aluminium hydroxide or aluminates
Patent holdings for IPC class C01F 7/46
Total number of patents in this class: 64
10-year publication summary
5
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4
|
5
|
5
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7
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6
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6
|
7
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2
|
1
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Alcoa of Australia Limited | 54 |
7 |
Ecolab USA Inc. | 5190 |
6 |
Instituto Mexicano Del Petroleo | 213 |
5 |
Terralithium LLC | 52 |
4 |
Cytec Industries Inc. | 407 |
3 |
Nalco Company | 620 |
2 |
Northeastern University | 493 |
2 |
PhiChem America, Inc. | 2 |
2 |
Phinergy Ltd. | 93 |
2 |
Rio Tinto ALCAN International Limited | 214 |
2 |
Shanghai Phichem Material Co. Ltd. | 6 |
2 |
Weston, David | 3 |
2 |
Haemaroo Materials Co., Ltd. | 2 |
2 |
BASF SE | 19740 |
1 |
LG Chem, Ltd. | 17205 |
1 |
Showa Denko K.K. | 2539 |
1 |
American Air Liquide, Inc. | 223 |
1 |
China Aluminum International Engineering Corporation Limited | 81 |
1 |
China Petroleum & Chemical Corporation | 1623 |
1 |
Kemira Chemicals, Inc. | 78 |
1 |
Other owners | 16 |