- All sections
- C - Chemistry; metallurgy
- C22B - Production or refining of metals; pretreatment of raw materials
- C22B 15/04 - Obtaining copper in reverberatory furnaces
Patent holdings for IPC class C22B 15/04
Total number of patents in this class: 9
10-year publication summary
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1
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0
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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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1
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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
|
|---|---|---|
| Praxair Technology, Inc. | 1367 |
2 |
| JX Metals Smelting Co., Ltd. | 4 |
2 |
| JX Nippon Mining & Metals Corporation | 1576 |
1 |
| Kennecott Utah Copper Corporation LLC | 2 |
1 |
| Kennecott Utah Copper LLC | 23 |
1 |
| Mitsubishi Materials Corporation | 2378 |
1 |
| Metso Metals Oy | 205 |
1 |
| Other owners | 0 |