- All sections
- C - Chemistry; metallurgy
- C22B - Production or refining of metals; pretreatment of raw materials
- C22B 9/21 - Apparatus therefor
Patent holdings for IPC class C22B 9/21
Total number of patents in this class: 5
10-year publication summary
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0
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2
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0
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0
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0
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0
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0
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0
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0
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0
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Alu Innovation AS | 7 |
1 |
| CBL Industrial Services, Inc. | 5 |
1 |
| Hatch Ltd. | 219 |
1 |
| Umicore AG & Co. KG | 867 |
1 |
| Obschestvo S Ogranichennoi Otvetstvennostju "nauchno-proizvodstvennaya Firma "ruteny" | 1 |
1 |
| Other owners | 0 |