- All sections
- C - Chemistrymetallurgy
- C01F - Compounds of the metals beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium, or of the rare earth metals
- C01F 7/428 - Preparation of aluminium oxide or hydroxide from metallic aluminium, e.g. by oxidation by oxidation in an aqueous solution
Patent holdings for IPC class C01F 7/428
Total number of patents in this class: 14
10-year publication summary
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0
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0
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1
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0
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1
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1
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0
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4
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1
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6
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Martinswerk GmbH | 26 |
2 |
| Technische Universitat Darmstadt | 276 |
2 |
| Hydrogenr8 Limited | 2 |
2 |
| Admatechs Company Limited | 109 |
1 |
| Polar Sapphire Ltd. | 16 |
1 |
| Solar Hydrogen Holdings, Inc. | 3 |
1 |
| Dongguan DSP Technology Co., Ltd. | 6 |
1 |
| Dingo HPA Pty Ltd | 1 |
1 |
| GH Power Inc. | 4 |
1 |
| Tactical Edge Systems, Inc. | 7 |
1 |
| M-chem Flexco | 1 |
1 |
| Other owners | 0 |