- All sections
- C - Chemistry; metallurgy
- C22B - Production or refining of metals; pretreatment of raw materials
- C22B 19/28 - Obtaining zinc or zinc oxide from muffle furnace residues
Patent holdings for IPC class C22B 19/28
Total number of patents in this class: 13
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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0
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1
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1
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1
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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
|
|---|---|---|
| Minex Technologies Limited | 5 |
3 |
| Umicore | 542 |
2 |
| ArcelorMittal Bremen GmbH | 2 |
1 |
| ArcelorMittal Investigacion y Desarrollo SL | 209 |
1 |
| Kinotech Solar Energy Corporation | 13 |
1 |
| Korea Zinc Co., Ltd. | 41 |
1 |
| Paul Wurth S.A. | 392 |
1 |
| S.A. Lhoist Recherche et Developpement | 163 |
1 |
| 9203-5468 Québec Inc | 5 |
1 |
| Minex Technology Group Limited | 2 |
1 |
| Other owners | 0 |