- All sections
- C - Chemistrymetallurgy
- C01F - Compounds of the metals beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium, or of the rare earth metals
- C01F 7/46 - 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
|
5
|
7
|
6
|
6
|
10
|
2
|
3
|
0
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ecolab USA Inc. | 5842 |
5 |
| Terralithium LLC | 57 |
5 |
| Alcoa of Australia Limited | 42 |
4 |
| Instituto Mexicano Del Petroleo | 200 |
4 |
| ARDEX Group GmbH | 15 |
4 |
| Cytec Industries Inc. | 413 |
2 |
| Nalco Company | 528 |
2 |
| Northeastern University | 579 |
2 |
| PhiChem America, Inc. | 4 |
2 |
| Rio Tinto ALCAN International Limited | 219 |
2 |
| Shanghai Phichem Material Co. Ltd. | 6 |
2 |
| Haemaroo Materials Co., Ltd. | 2 |
2 |
| Evergreen Alumina, LLC | 2 |
2 |
| BASF SE | 21334 |
1 |
| LG Chem, Ltd. | 17986 |
1 |
| Admatechs Company Limited | 109 |
1 |
| American Air Liquide, Inc. | 269 |
1 |
| China Aluminum International Engineering Corporation Limited | 80 |
1 |
| China Petroleum & Chemical Corporation | 2190 |
1 |
| Denka Company Limited | 2778 |
1 |
| Other owners | 19 |