- All sections
- C - Chemistrymetallurgy
- C01F - Compounds of the metals beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium, or of the rare earth metals
- C01F 7/441 - Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water by calcination
Patent holdings for IPC class C01F 7/441
Total number of patents in this class: 61
10-year publication summary
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0
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1
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0
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0
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4
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6
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8
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14
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9
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9
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saint-Gobain Ceramics & Plastics, Inc. | 836 |
5 |
| BASF Corporation | 1719 |
4 |
| Corning Incorporated | 10320 |
4 |
| Sasol Germany GmbH | 205 |
3 |
| Sumitomo Chemical Company, Limited | 9079 |
2 |
| Nippon Light Metal Company, Ltd. | 672 |
2 |
| Rhodia Operations | 1586 |
2 |
| Veganicskn Limited | 5 |
2 |
| Advance Zinctek Limited | 20 |
2 |
| Metso Metals Oy | 208 |
2 |
| Lava Blue Ltd | 5 |
2 |
| Susonity Commercial GmbH | 207 |
2 |
| 3m Innovative Properties Company | 17771 |
1 |
| Admatechs Company Limited | 83 |
1 |
| Aramco Services Company | 4033 |
1 |
| China Petroleum & Chemical Corporation | 1911 |
1 |
| Guangdong Brunp Recycling Technology Co., Ltd | 1244 |
1 |
| Hunan Brunp Recycling Technology Co., Ltd. | 1213 |
1 |
| IFP Energies Nouvelles | 2959 |
1 |
| Kent State University | 236 |
1 |
| Other owners | 21 |